typescript/lib/tsserverlibrary.d.ts

/*! *****************************************************************************
Copyright (c) Microsoft Corporation. All rights reserved. 
Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0  
 
THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE, 
MERCHANTABLITY OR NON-INFRINGEMENT. 
 
See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */

declare namespace ts {
    const versionMajorMinor = "3.5";
    /** The version of the TypeScript compiler release */
    const version: string;
}
declare namespace ts {
    /**
     * Type of objects whose values are all of the same type.
     * The `in` and `for-in` operators can *not* be safely used,
     * since `Object.prototype` may be modified by outside code.
     */
    interface MapLike<T> {
        [index: string]: T;
    }
    interface SortedReadonlyArray<T> extends ReadonlyArray<T> {
        " __sortedArrayBrand": any;
    }
    interface SortedArray<T> extends Array<T> {
        " __sortedArrayBrand": any;
    }
    /** ES6 Map interface, only read methods included. */
    interface ReadonlyMap<T> {
        get(key: string): T | undefined;
        has(key: string): boolean;
        forEach(action: (value: T, key: string) => void): void;
        readonly size: number;
        keys(): Iterator<string>;
        values(): Iterator<T>;
        entries(): Iterator<[string, T]>;
    }
    /** ES6 Map interface. */
    interface Map<T> extends ReadonlyMap<T> {
        set(key: string, value: T): this;
        delete(key: string): boolean;
        clear(): void;
    }
    /** ES6 Iterator type. */
    interface Iterator<T> {
        next(): {
            value: T;
            done: false;
        } | {
            value: never;
            done: true;
        };
    }
    /** Array that is only intended to be pushed to, never read. */
    interface Push<T> {
        push(...values: T[]): void;
    }
}
declare namespace ts {
    type Path = string & {
        __pathBrand: any;
    };
    interface TextRange {
        pos: number;
        end: number;
    }
    type JSDocSyntaxKind = SyntaxKind.EndOfFileToken | SyntaxKind.WhitespaceTrivia | SyntaxKind.AtToken | SyntaxKind.NewLineTrivia | SyntaxKind.AsteriskToken | SyntaxKind.OpenBraceToken | SyntaxKind.CloseBraceToken | SyntaxKind.LessThanToken | SyntaxKind.OpenBracketToken | SyntaxKind.CloseBracketToken | SyntaxKind.EqualsToken | SyntaxKind.CommaToken | SyntaxKind.DotToken | SyntaxKind.Identifier | SyntaxKind.BacktickToken | SyntaxKind.Unknown | KeywordSyntaxKind;
    type KeywordSyntaxKind = SyntaxKind.AbstractKeyword | SyntaxKind.AnyKeyword | SyntaxKind.AsKeyword | SyntaxKind.BigIntKeyword | SyntaxKind.BooleanKeyword | SyntaxKind.BreakKeyword | SyntaxKind.CaseKeyword | SyntaxKind.CatchKeyword | SyntaxKind.ClassKeyword | SyntaxKind.ContinueKeyword | SyntaxKind.ConstKeyword | SyntaxKind.ConstructorKeyword | SyntaxKind.DebuggerKeyword | SyntaxKind.DeclareKeyword | SyntaxKind.DefaultKeyword | SyntaxKind.DeleteKeyword | SyntaxKind.DoKeyword | SyntaxKind.ElseKeyword | SyntaxKind.EnumKeyword | SyntaxKind.ExportKeyword | SyntaxKind.ExtendsKeyword | SyntaxKind.FalseKeyword | SyntaxKind.FinallyKeyword | SyntaxKind.ForKeyword | SyntaxKind.FromKeyword | SyntaxKind.FunctionKeyword | SyntaxKind.GetKeyword | SyntaxKind.IfKeyword | SyntaxKind.ImplementsKeyword | SyntaxKind.ImportKeyword | SyntaxKind.InKeyword | SyntaxKind.InferKeyword | SyntaxKind.InstanceOfKeyword | SyntaxKind.InterfaceKeyword | SyntaxKind.IsKeyword | SyntaxKind.KeyOfKeyword | SyntaxKind.LetKeyword | SyntaxKind.ModuleKeyword | SyntaxKind.NamespaceKeyword | SyntaxKind.NeverKeyword | SyntaxKind.NewKeyword | SyntaxKind.NullKeyword | SyntaxKind.NumberKeyword | SyntaxKind.ObjectKeyword | SyntaxKind.PackageKeyword | SyntaxKind.PrivateKeyword | SyntaxKind.ProtectedKeyword | SyntaxKind.PublicKeyword | SyntaxKind.ReadonlyKeyword | SyntaxKind.RequireKeyword | SyntaxKind.GlobalKeyword | SyntaxKind.ReturnKeyword | SyntaxKind.SetKeyword | SyntaxKind.StaticKeyword | SyntaxKind.StringKeyword | SyntaxKind.SuperKeyword | SyntaxKind.SwitchKeyword | SyntaxKind.SymbolKeyword | SyntaxKind.ThisKeyword | SyntaxKind.ThrowKeyword | SyntaxKind.TrueKeyword | SyntaxKind.TryKeyword | SyntaxKind.TypeKeyword | SyntaxKind.TypeOfKeyword | SyntaxKind.UndefinedKeyword | SyntaxKind.UniqueKeyword | SyntaxKind.UnknownKeyword | SyntaxKind.VarKeyword | SyntaxKind.VoidKeyword | SyntaxKind.WhileKeyword | SyntaxKind.WithKeyword | SyntaxKind.YieldKeyword | SyntaxKind.AsyncKeyword | SyntaxKind.AwaitKeyword | SyntaxKind.OfKeyword;
    type JsxTokenSyntaxKind = SyntaxKind.LessThanSlashToken | SyntaxKind.EndOfFileToken | SyntaxKind.ConflictMarkerTrivia | SyntaxKind.JsxText | SyntaxKind.JsxTextAllWhiteSpaces | SyntaxKind.OpenBraceToken | SyntaxKind.LessThanToken;
    enum SyntaxKind {
        Unknown = 0,
        EndOfFileToken = 1,
        SingleLineCommentTrivia = 2,
        MultiLineCommentTrivia = 3,
        NewLineTrivia = 4,
        WhitespaceTrivia = 5,
        ShebangTrivia = 6,
        ConflictMarkerTrivia = 7,
        NumericLiteral = 8,
        BigIntLiteral = 9,
        StringLiteral = 10,
        JsxText = 11,
        JsxTextAllWhiteSpaces = 12,
        RegularExpressionLiteral = 13,
        NoSubstitutionTemplateLiteral = 14,
        TemplateHead = 15,
        TemplateMiddle = 16,
        TemplateTail = 17,
        OpenBraceToken = 18,
        CloseBraceToken = 19,
        OpenParenToken = 20,
        CloseParenToken = 21,
        OpenBracketToken = 22,
        CloseBracketToken = 23,
        DotToken = 24,
        DotDotDotToken = 25,
        SemicolonToken = 26,
        CommaToken = 27,
        LessThanToken = 28,
        LessThanSlashToken = 29,
        GreaterThanToken = 30,
        LessThanEqualsToken = 31,
        GreaterThanEqualsToken = 32,
        EqualsEqualsToken = 33,
        ExclamationEqualsToken = 34,
        EqualsEqualsEqualsToken = 35,
        ExclamationEqualsEqualsToken = 36,
        EqualsGreaterThanToken = 37,
        PlusToken = 38,
        MinusToken = 39,
        AsteriskToken = 40,
        AsteriskAsteriskToken = 41,
        SlashToken = 42,
        PercentToken = 43,
        PlusPlusToken = 44,
        MinusMinusToken = 45,
        LessThanLessThanToken = 46,
        GreaterThanGreaterThanToken = 47,
        GreaterThanGreaterThanGreaterThanToken = 48,
        AmpersandToken = 49,
        BarToken = 50,
        CaretToken = 51,
        ExclamationToken = 52,
        TildeToken = 53,
        AmpersandAmpersandToken = 54,
        BarBarToken = 55,
        QuestionToken = 56,
        ColonToken = 57,
        AtToken = 58,
        /** Only the JSDoc scanner produces BacktickToken. The normal scanner produces NoSubstitutionTemplateLiteral and related kinds. */
        BacktickToken = 59,
        EqualsToken = 60,
        PlusEqualsToken = 61,
        MinusEqualsToken = 62,
        AsteriskEqualsToken = 63,
        AsteriskAsteriskEqualsToken = 64,
        SlashEqualsToken = 65,
        PercentEqualsToken = 66,
        LessThanLessThanEqualsToken = 67,
        GreaterThanGreaterThanEqualsToken = 68,
        GreaterThanGreaterThanGreaterThanEqualsToken = 69,
        AmpersandEqualsToken = 70,
        BarEqualsToken = 71,
        CaretEqualsToken = 72,
        Identifier = 73,
        BreakKeyword = 74,
        CaseKeyword = 75,
        CatchKeyword = 76,
        ClassKeyword = 77,
        ConstKeyword = 78,
        ContinueKeyword = 79,
        DebuggerKeyword = 80,
        DefaultKeyword = 81,
        DeleteKeyword = 82,
        DoKeyword = 83,
        ElseKeyword = 84,
        EnumKeyword = 85,
        ExportKeyword = 86,
        ExtendsKeyword = 87,
        FalseKeyword = 88,
        FinallyKeyword = 89,
        ForKeyword = 90,
        FunctionKeyword = 91,
        IfKeyword = 92,
        ImportKeyword = 93,
        InKeyword = 94,
        InstanceOfKeyword = 95,
        NewKeyword = 96,
        NullKeyword = 97,
        ReturnKeyword = 98,
        SuperKeyword = 99,
        SwitchKeyword = 100,
        ThisKeyword = 101,
        ThrowKeyword = 102,
        TrueKeyword = 103,
        TryKeyword = 104,
        TypeOfKeyword = 105,
        VarKeyword = 106,
        VoidKeyword = 107,
        WhileKeyword = 108,
        WithKeyword = 109,
        ImplementsKeyword = 110,
        InterfaceKeyword = 111,
        LetKeyword = 112,
        PackageKeyword = 113,
        PrivateKeyword = 114,
        ProtectedKeyword = 115,
        PublicKeyword = 116,
        StaticKeyword = 117,
        YieldKeyword = 118,
        AbstractKeyword = 119,
        AsKeyword = 120,
        AnyKeyword = 121,
        AsyncKeyword = 122,
        AwaitKeyword = 123,
        BooleanKeyword = 124,
        ConstructorKeyword = 125,
        DeclareKeyword = 126,
        GetKeyword = 127,
        InferKeyword = 128,
        IsKeyword = 129,
        KeyOfKeyword = 130,
        ModuleKeyword = 131,
        NamespaceKeyword = 132,
        NeverKeyword = 133,
        ReadonlyKeyword = 134,
        RequireKeyword = 135,
        NumberKeyword = 136,
        ObjectKeyword = 137,
        SetKeyword = 138,
        StringKeyword = 139,
        SymbolKeyword = 140,
        TypeKeyword = 141,
        UndefinedKeyword = 142,
        UniqueKeyword = 143,
        UnknownKeyword = 144,
        FromKeyword = 145,
        GlobalKeyword = 146,
        BigIntKeyword = 147,
        OfKeyword = 148,
        QualifiedName = 149,
        ComputedPropertyName = 150,
        TypeParameter = 151,
        Parameter = 152,
        Decorator = 153,
        PropertySignature = 154,
        PropertyDeclaration = 155,
        MethodSignature = 156,
        MethodDeclaration = 157,
        Constructor = 158,
        GetAccessor = 159,
        SetAccessor = 160,
        CallSignature = 161,
        ConstructSignature = 162,
        IndexSignature = 163,
        TypePredicate = 164,
        TypeReference = 165,
        FunctionType = 166,
        ConstructorType = 167,
        TypeQuery = 168,
        TypeLiteral = 169,
        ArrayType = 170,
        TupleType = 171,
        OptionalType = 172,
        RestType = 173,
        UnionType = 174,
        IntersectionType = 175,
        ConditionalType = 176,
        InferType = 177,
        ParenthesizedType = 178,
        ThisType = 179,
        TypeOperator = 180,
        IndexedAccessType = 181,
        MappedType = 182,
        LiteralType = 183,
        ImportType = 184,
        ObjectBindingPattern = 185,
        ArrayBindingPattern = 186,
        BindingElement = 187,
        ArrayLiteralExpression = 188,
        ObjectLiteralExpression = 189,
        PropertyAccessExpression = 190,
        ElementAccessExpression = 191,
        CallExpression = 192,
        NewExpression = 193,
        TaggedTemplateExpression = 194,
        TypeAssertionExpression = 195,
        ParenthesizedExpression = 196,
        FunctionExpression = 197,
        ArrowFunction = 198,
        DeleteExpression = 199,
        TypeOfExpression = 200,
        VoidExpression = 201,
        AwaitExpression = 202,
        PrefixUnaryExpression = 203,
        PostfixUnaryExpression = 204,
        BinaryExpression = 205,
        ConditionalExpression = 206,
        TemplateExpression = 207,
        YieldExpression = 208,
        SpreadElement = 209,
        ClassExpression = 210,
        OmittedExpression = 211,
        ExpressionWithTypeArguments = 212,
        AsExpression = 213,
        NonNullExpression = 214,
        MetaProperty = 215,
        SyntheticExpression = 216,
        TemplateSpan = 217,
        SemicolonClassElement = 218,
        Block = 219,
        VariableStatement = 220,
        EmptyStatement = 221,
        ExpressionStatement = 222,
        IfStatement = 223,
        DoStatement = 224,
        WhileStatement = 225,
        ForStatement = 226,
        ForInStatement = 227,
        ForOfStatement = 228,
        ContinueStatement = 229,
        BreakStatement = 230,
        ReturnStatement = 231,
        WithStatement = 232,
        SwitchStatement = 233,
        LabeledStatement = 234,
        ThrowStatement = 235,
        TryStatement = 236,
        DebuggerStatement = 237,
        VariableDeclaration = 238,
        VariableDeclarationList = 239,
        FunctionDeclaration = 240,
        ClassDeclaration = 241,
        InterfaceDeclaration = 242,
        TypeAliasDeclaration = 243,
        EnumDeclaration = 244,
        ModuleDeclaration = 245,
        ModuleBlock = 246,
        CaseBlock = 247,
        NamespaceExportDeclaration = 248,
        ImportEqualsDeclaration = 249,
        ImportDeclaration = 250,
        ImportClause = 251,
        NamespaceImport = 252,
        NamedImports = 253,
        ImportSpecifier = 254,
        ExportAssignment = 255,
        ExportDeclaration = 256,
        NamedExports = 257,
        ExportSpecifier = 258,
        MissingDeclaration = 259,
        ExternalModuleReference = 260,
        JsxElement = 261,
        JsxSelfClosingElement = 262,
        JsxOpeningElement = 263,
        JsxClosingElement = 264,
        JsxFragment = 265,
        JsxOpeningFragment = 266,
        JsxClosingFragment = 267,
        JsxAttribute = 268,
        JsxAttributes = 269,
        JsxSpreadAttribute = 270,
        JsxExpression = 271,
        CaseClause = 272,
        DefaultClause = 273,
        HeritageClause = 274,
        CatchClause = 275,
        PropertyAssignment = 276,
        ShorthandPropertyAssignment = 277,
        SpreadAssignment = 278,
        EnumMember = 279,
        UnparsedPrologue = 280,
        UnparsedPrepend = 281,
        UnparsedText = 282,
        UnparsedInternalText = 283,
        UnparsedSyntheticReference = 284,
        SourceFile = 285,
        Bundle = 286,
        UnparsedSource = 287,
        InputFiles = 288,
        JSDocTypeExpression = 289,
        JSDocAllType = 290,
        JSDocUnknownType = 291,
        JSDocNullableType = 292,
        JSDocNonNullableType = 293,
        JSDocOptionalType = 294,
        JSDocFunctionType = 295,
        JSDocVariadicType = 296,
        JSDocComment = 297,
        JSDocTypeLiteral = 298,
        JSDocSignature = 299,
        JSDocTag = 300,
        JSDocAugmentsTag = 301,
        JSDocClassTag = 302,
        JSDocCallbackTag = 303,
        JSDocEnumTag = 304,
        JSDocParameterTag = 305,
        JSDocReturnTag = 306,
        JSDocThisTag = 307,
        JSDocTypeTag = 308,
        JSDocTemplateTag = 309,
        JSDocTypedefTag = 310,
        JSDocPropertyTag = 311,
        SyntaxList = 312,
        NotEmittedStatement = 313,
        PartiallyEmittedExpression = 314,
        CommaListExpression = 315,
        MergeDeclarationMarker = 316,
        EndOfDeclarationMarker = 317,
        Count = 318,
        FirstAssignment = 60,
        LastAssignment = 72,
        FirstCompoundAssignment = 61,
        LastCompoundAssignment = 72,
        FirstReservedWord = 74,
        LastReservedWord = 109,
        FirstKeyword = 74,
        LastKeyword = 148,
        FirstFutureReservedWord = 110,
        LastFutureReservedWord = 118,
        FirstTypeNode = 164,
        LastTypeNode = 184,
        FirstPunctuation = 18,
        LastPunctuation = 72,
        FirstToken = 0,
        LastToken = 148,
        FirstTriviaToken = 2,
        LastTriviaToken = 7,
        FirstLiteralToken = 8,
        LastLiteralToken = 14,
        FirstTemplateToken = 14,
        LastTemplateToken = 17,
        FirstBinaryOperator = 28,
        LastBinaryOperator = 72,
        FirstNode = 149,
        FirstJSDocNode = 289,
        LastJSDocNode = 311,
        FirstJSDocTagNode = 300,
        LastJSDocTagNode = 311,
    }
    enum NodeFlags {
        None = 0,
        Let = 1,
        Const = 2,
        NestedNamespace = 4,
        Synthesized = 8,
        Namespace = 16,
        ExportContext = 32,
        ContainsThis = 64,
        HasImplicitReturn = 128,
        HasExplicitReturn = 256,
        GlobalAugmentation = 512,
        HasAsyncFunctions = 1024,
        DisallowInContext = 2048,
        YieldContext = 4096,
        DecoratorContext = 8192,
        AwaitContext = 16384,
        ThisNodeHasError = 32768,
        JavaScriptFile = 65536,
        ThisNodeOrAnySubNodesHasError = 131072,
        HasAggregatedChildData = 262144,
        JSDoc = 2097152,
        JsonFile = 16777216,
        BlockScoped = 3,
        ReachabilityCheckFlags = 384,
        ReachabilityAndEmitFlags = 1408,
        ContextFlags = 12679168,
        TypeExcludesFlags = 20480,
    }
    enum ModifierFlags {
        None = 0,
        Export = 1,
        Ambient = 2,
        Public = 4,
        Private = 8,
        Protected = 16,
        Static = 32,
        Readonly = 64,
        Abstract = 128,
        Async = 256,
        Default = 512,
        Const = 2048,
        HasComputedFlags = 536870912,
        AccessibilityModifier = 28,
        ParameterPropertyModifier = 92,
        NonPublicAccessibilityModifier = 24,
        TypeScriptModifier = 2270,
        ExportDefault = 513,
        All = 3071
    }
    enum JsxFlags {
        None = 0,
        /** An element from a named property of the JSX.IntrinsicElements interface */
        IntrinsicNamedElement = 1,
        /** An element inferred from the string index signature of the JSX.IntrinsicElements interface */
        IntrinsicIndexedElement = 2,
        IntrinsicElement = 3
    }
    interface Node extends TextRange {
        kind: SyntaxKind;
        flags: NodeFlags;
        decorators?: NodeArray<Decorator>;
        modifiers?: ModifiersArray;
        parent: Node;
    }
    interface JSDocContainer {
    }
    type HasJSDoc = ParameterDeclaration | CallSignatureDeclaration | ConstructSignatureDeclaration | MethodSignature | PropertySignature | ArrowFunction | ParenthesizedExpression | SpreadAssignment | ShorthandPropertyAssignment | PropertyAssignment | FunctionExpression | LabeledStatement | ExpressionStatement | VariableStatement | FunctionDeclaration | ConstructorDeclaration | MethodDeclaration | PropertyDeclaration | AccessorDeclaration | ClassLikeDeclaration | InterfaceDeclaration | TypeAliasDeclaration | EnumMember | EnumDeclaration | ModuleDeclaration | ImportEqualsDeclaration | IndexSignatureDeclaration | FunctionTypeNode | ConstructorTypeNode | JSDocFunctionType | ExportDeclaration | EndOfFileToken;
    type HasType = SignatureDeclaration | VariableDeclaration | ParameterDeclaration | PropertySignature | PropertyDeclaration | TypePredicateNode | ParenthesizedTypeNode | TypeOperatorNode | MappedTypeNode | AssertionExpression | TypeAliasDeclaration | JSDocTypeExpression | JSDocNonNullableType | JSDocNullableType | JSDocOptionalType | JSDocVariadicType;
    type HasInitializer = HasExpressionInitializer | ForStatement | ForInStatement | ForOfStatement | JsxAttribute;
    type HasExpressionInitializer = VariableDeclaration | ParameterDeclaration | BindingElement | PropertySignature | PropertyDeclaration | PropertyAssignment | EnumMember;
    interface NodeArray<T extends Node> extends ReadonlyArray<T>, TextRange {
        hasTrailingComma?: boolean;
    }
    interface Token<TKind extends SyntaxKind> extends Node {
        kind: TKind;
    }
    type DotDotDotToken = Token<SyntaxKind.DotDotDotToken>;
    type QuestionToken = Token<SyntaxKind.QuestionToken>;
    type ExclamationToken = Token<SyntaxKind.ExclamationToken>;
    type ColonToken = Token<SyntaxKind.ColonToken>;
    type EqualsToken = Token<SyntaxKind.EqualsToken>;
    type AsteriskToken = Token<SyntaxKind.AsteriskToken>;
    type EqualsGreaterThanToken = Token<SyntaxKind.EqualsGreaterThanToken>;
    type EndOfFileToken = Token<SyntaxKind.EndOfFileToken> & JSDocContainer;
    type ReadonlyToken = Token<SyntaxKind.ReadonlyKeyword>;
    type AwaitKeywordToken = Token<SyntaxKind.AwaitKeyword>;
    type PlusToken = Token<SyntaxKind.PlusToken>;
    type MinusToken = Token<SyntaxKind.MinusToken>;
    type Modifier = Token<SyntaxKind.AbstractKeyword> | Token<SyntaxKind.AsyncKeyword> | Token<SyntaxKind.ConstKeyword> | Token<SyntaxKind.DeclareKeyword> | Token<SyntaxKind.DefaultKeyword> | Token<SyntaxKind.ExportKeyword> | Token<SyntaxKind.PublicKeyword> | Token<SyntaxKind.PrivateKeyword> | Token<SyntaxKind.ProtectedKeyword> | Token<SyntaxKind.ReadonlyKeyword> | Token<SyntaxKind.StaticKeyword>;
    type ModifiersArray = NodeArray<Modifier>;
    interface Identifier extends PrimaryExpression, Declaration {
        kind: SyntaxKind.Identifier;
        /**
         * Prefer to use `id.unescapedText`. (Note: This is available only in services, not internally to the TypeScript compiler.)
         * Text of identifier, but if the identifier begins with two underscores, this will begin with three.
         */
        escapedText: __String;
        originalKeywordKind?: SyntaxKind;
        isInJSDocNamespace?: boolean;
    }
    interface TransientIdentifier extends Identifier {
        resolvedSymbol: Symbol;
    }
    interface QualifiedName extends Node {
        kind: SyntaxKind.QualifiedName;
        left: EntityName;
        right: Identifier;
    }
    type EntityName = Identifier | QualifiedName;
    type PropertyName = Identifier | StringLiteral | NumericLiteral | ComputedPropertyName;
    type DeclarationName = Identifier | StringLiteralLike | NumericLiteral | ComputedPropertyName | BindingPattern;
    interface Declaration extends Node {
        _declarationBrand: any;
    }
    interface NamedDeclaration extends Declaration {
        name?: DeclarationName;
    }
    interface DeclarationStatement extends NamedDeclaration, Statement {
        name?: Identifier | StringLiteral | NumericLiteral;
    }
    interface ComputedPropertyName extends Node {
        parent: Declaration;
        kind: SyntaxKind.ComputedPropertyName;
        expression: Expression;
    }
    interface Decorator extends Node {
        kind: SyntaxKind.Decorator;
        parent: NamedDeclaration;
        expression: LeftHandSideExpression;
    }
    interface TypeParameterDeclaration extends NamedDeclaration {
        kind: SyntaxKind.TypeParameter;
        parent: DeclarationWithTypeParameterChildren | InferTypeNode;
        name: Identifier;
        /** Note: Consider calling `getEffectiveConstraintOfTypeParameter` */
        constraint?: TypeNode;
        default?: TypeNode;
        expression?: Expression;
    }
    interface SignatureDeclarationBase extends NamedDeclaration, JSDocContainer {
        kind: SignatureDeclaration["kind"];
        name?: PropertyName;
        typeParameters?: NodeArray<TypeParameterDeclaration>;
        parameters: NodeArray<ParameterDeclaration>;
        type?: TypeNode;
    }
    type SignatureDeclaration = CallSignatureDeclaration | ConstructSignatureDeclaration | MethodSignature | IndexSignatureDeclaration | FunctionTypeNode | ConstructorTypeNode | JSDocFunctionType | FunctionDeclaration | MethodDeclaration | ConstructorDeclaration | AccessorDeclaration | FunctionExpression | ArrowFunction;
    interface CallSignatureDeclaration extends SignatureDeclarationBase, TypeElement {
        kind: SyntaxKind.CallSignature;
    }
    interface ConstructSignatureDeclaration extends SignatureDeclarationBase, TypeElement {
        kind: SyntaxKind.ConstructSignature;
    }
    type BindingName = Identifier | BindingPattern;
    interface VariableDeclaration extends NamedDeclaration {
        kind: SyntaxKind.VariableDeclaration;
        parent: VariableDeclarationList | CatchClause;
        name: BindingName;
        exclamationToken?: ExclamationToken;
        type?: TypeNode;
        initializer?: Expression;
    }
    interface VariableDeclarationList extends Node {
        kind: SyntaxKind.VariableDeclarationList;
        parent: VariableStatement | ForStatement | ForOfStatement | ForInStatement;
        declarations: NodeArray<VariableDeclaration>;
    }
    interface ParameterDeclaration extends NamedDeclaration, JSDocContainer {
        kind: SyntaxKind.Parameter;
        parent: SignatureDeclaration;
        dotDotDotToken?: DotDotDotToken;
        name: BindingName;
        questionToken?: QuestionToken;
        type?: TypeNode;
        initializer?: Expression;
    }
    interface BindingElement extends NamedDeclaration {
        kind: SyntaxKind.BindingElement;
        parent: BindingPattern;
        propertyName?: PropertyName;
        dotDotDotToken?: DotDotDotToken;
        name: BindingName;
        initializer?: Expression;
    }
    interface PropertySignature extends TypeElement, JSDocContainer {
        kind: SyntaxKind.PropertySignature;
        name: PropertyName;
        questionToken?: QuestionToken;
        type?: TypeNode;
        initializer?: Expression;
    }
    interface PropertyDeclaration extends ClassElement, JSDocContainer {
        kind: SyntaxKind.PropertyDeclaration;
        parent: ClassLikeDeclaration;
        name: PropertyName;
        questionToken?: QuestionToken;
        exclamationToken?: ExclamationToken;
        type?: TypeNode;
        initializer?: Expression;
    }
    interface ObjectLiteralElement extends NamedDeclaration {
        _objectLiteralBrand: any;
        name?: PropertyName;
    }
    /** Unlike ObjectLiteralElement, excludes JSXAttribute and JSXSpreadAttribute. */
    type ObjectLiteralElementLike = PropertyAssignment | ShorthandPropertyAssignment | SpreadAssignment | MethodDeclaration | AccessorDeclaration;
    interface PropertyAssignment extends ObjectLiteralElement, JSDocContainer {
        parent: ObjectLiteralExpression;
        kind: SyntaxKind.PropertyAssignment;
        name: PropertyName;
        questionToken?: QuestionToken;
        initializer: Expression;
    }
    interface ShorthandPropertyAssignment extends ObjectLiteralElement, JSDocContainer {
        parent: ObjectLiteralExpression;
        kind: SyntaxKind.ShorthandPropertyAssignment;
        name: Identifier;
        questionToken?: QuestionToken;
        exclamationToken?: ExclamationToken;
        equalsToken?: Token<SyntaxKind.EqualsToken>;
        objectAssignmentInitializer?: Expression;
    }
    interface SpreadAssignment extends ObjectLiteralElement, JSDocContainer {
        parent: ObjectLiteralExpression;
        kind: SyntaxKind.SpreadAssignment;
        expression: Expression;
    }
    type VariableLikeDeclaration = VariableDeclaration | ParameterDeclaration | BindingElement | PropertyDeclaration | PropertyAssignment | PropertySignature | JsxAttribute | ShorthandPropertyAssignment | EnumMember | JSDocPropertyTag | JSDocParameterTag;
    interface PropertyLikeDeclaration extends NamedDeclaration {
        name: PropertyName;
    }
    interface ObjectBindingPattern extends Node {
        kind: SyntaxKind.ObjectBindingPattern;
        parent: VariableDeclaration | ParameterDeclaration | BindingElement;
        elements: NodeArray<BindingElement>;
    }
    interface ArrayBindingPattern extends Node {
        kind: SyntaxKind.ArrayBindingPattern;
        parent: VariableDeclaration | ParameterDeclaration | BindingElement;
        elements: NodeArray<ArrayBindingElement>;
    }
    type BindingPattern = ObjectBindingPattern | ArrayBindingPattern;
    type ArrayBindingElement = BindingElement | OmittedExpression;
    /**
     * Several node kinds share function-like features such as a signature,
     * a name, and a body. These nodes should extend FunctionLikeDeclarationBase.
     * Examples:
     * - FunctionDeclaration
     * - MethodDeclaration
     * - AccessorDeclaration
     */
    interface FunctionLikeDeclarationBase extends SignatureDeclarationBase {
        _functionLikeDeclarationBrand: any;
        asteriskToken?: AsteriskToken;
        questionToken?: QuestionToken;
        exclamationToken?: ExclamationToken;
        body?: Block | Expression;
    }
    type FunctionLikeDeclaration = FunctionDeclaration | MethodDeclaration | GetAccessorDeclaration | SetAccessorDeclaration | ConstructorDeclaration | FunctionExpression | ArrowFunction;
    /** @deprecated Use SignatureDeclaration */
    type FunctionLike = SignatureDeclaration;
    interface FunctionDeclaration extends FunctionLikeDeclarationBase, DeclarationStatement {
        kind: SyntaxKind.FunctionDeclaration;
        name?: Identifier;
        body?: FunctionBody;
    }
    interface MethodSignature extends SignatureDeclarationBase, TypeElement {
        kind: SyntaxKind.MethodSignature;
        parent: ObjectTypeDeclaration;
        name: PropertyName;
    }
    interface MethodDeclaration extends FunctionLikeDeclarationBase, ClassElement, ObjectLiteralElement, JSDocContainer {
        kind: SyntaxKind.MethodDeclaration;
        parent: ClassLikeDeclaration | ObjectLiteralExpression;
        name: PropertyName;
        body?: FunctionBody;
    }
    interface ConstructorDeclaration extends FunctionLikeDeclarationBase, ClassElement, JSDocContainer {
        kind: SyntaxKind.Constructor;
        parent: ClassLikeDeclaration;
        body?: FunctionBody;
    }
    /** For when we encounter a semicolon in a class declaration. ES6 allows these as class elements. */
    interface SemicolonClassElement extends ClassElement {
        kind: SyntaxKind.SemicolonClassElement;
        parent: ClassLikeDeclaration;
    }
    interface GetAccessorDeclaration extends FunctionLikeDeclarationBase, ClassElement, ObjectLiteralElement, JSDocContainer {
        kind: SyntaxKind.GetAccessor;
        parent: ClassLikeDeclaration | ObjectLiteralExpression;
        name: PropertyName;
        body?: FunctionBody;
    }
    interface SetAccessorDeclaration extends FunctionLikeDeclarationBase, ClassElement, ObjectLiteralElement, JSDocContainer {
        kind: SyntaxKind.SetAccessor;
        parent: ClassLikeDeclaration | ObjectLiteralExpression;
        name: PropertyName;
        body?: FunctionBody;
    }
    type AccessorDeclaration = GetAccessorDeclaration | SetAccessorDeclaration;
    interface IndexSignatureDeclaration extends SignatureDeclarationBase, ClassElement, TypeElement {
        kind: SyntaxKind.IndexSignature;
        parent: ObjectTypeDeclaration;
    }
    interface TypeNode extends Node {
        _typeNodeBrand: any;
    }
    interface KeywordTypeNode extends TypeNode {
        kind: SyntaxKind.AnyKeyword | SyntaxKind.UnknownKeyword | SyntaxKind.NumberKeyword | SyntaxKind.BigIntKeyword | SyntaxKind.ObjectKeyword | SyntaxKind.BooleanKeyword | SyntaxKind.StringKeyword | SyntaxKind.SymbolKeyword | SyntaxKind.ThisKeyword | SyntaxKind.VoidKeyword | SyntaxKind.UndefinedKeyword | SyntaxKind.NullKeyword | SyntaxKind.NeverKeyword;
    }
    interface ImportTypeNode extends NodeWithTypeArguments {
        kind: SyntaxKind.ImportType;
        isTypeOf?: boolean;
        argument: TypeNode;
        qualifier?: EntityName;
    }
    interface ThisTypeNode extends TypeNode {
        kind: SyntaxKind.ThisType;
    }
    type FunctionOrConstructorTypeNode = FunctionTypeNode | ConstructorTypeNode;
    interface FunctionOrConstructorTypeNodeBase extends TypeNode, SignatureDeclarationBase {
        kind: SyntaxKind.FunctionType | SyntaxKind.ConstructorType;
        type: TypeNode;
    }
    interface FunctionTypeNode extends FunctionOrConstructorTypeNodeBase {
        kind: SyntaxKind.FunctionType;
    }
    interface ConstructorTypeNode extends FunctionOrConstructorTypeNodeBase {
        kind: SyntaxKind.ConstructorType;
    }
    interface NodeWithTypeArguments extends TypeNode {
        typeArguments?: NodeArray<TypeNode>;
    }
    type TypeReferenceType = TypeReferenceNode | ExpressionWithTypeArguments;
    interface TypeReferenceNode extends NodeWithTypeArguments {
        kind: SyntaxKind.TypeReference;
        typeName: EntityName;
    }
    interface TypePredicateNode extends TypeNode {
        kind: SyntaxKind.TypePredicate;
        parent: SignatureDeclaration | JSDocTypeExpression;
        parameterName: Identifier | ThisTypeNode;
        type: TypeNode;
    }
    interface TypeQueryNode extends TypeNode {
        kind: SyntaxKind.TypeQuery;
        exprName: EntityName;
    }
    interface TypeLiteralNode extends TypeNode, Declaration {
        kind: SyntaxKind.TypeLiteral;
        members: NodeArray<TypeElement>;
    }
    interface ArrayTypeNode extends TypeNode {
        kind: SyntaxKind.ArrayType;
        elementType: TypeNode;
    }
    interface TupleTypeNode extends TypeNode {
        kind: SyntaxKind.TupleType;
        elementTypes: NodeArray<TypeNode>;
    }
    interface OptionalTypeNode extends TypeNode {
        kind: SyntaxKind.OptionalType;
        type: TypeNode;
    }
    interface RestTypeNode extends TypeNode {
        kind: SyntaxKind.RestType;
        type: TypeNode;
    }
    type UnionOrIntersectionTypeNode = UnionTypeNode | IntersectionTypeNode;
    interface UnionTypeNode extends TypeNode {
        kind: SyntaxKind.UnionType;
        types: NodeArray<TypeNode>;
    }
    interface IntersectionTypeNode extends TypeNode {
        kind: SyntaxKind.IntersectionType;
        types: NodeArray<TypeNode>;
    }
    interface ConditionalTypeNode extends TypeNode {
        kind: SyntaxKind.ConditionalType;
        checkType: TypeNode;
        extendsType: TypeNode;
        trueType: TypeNode;
        falseType: TypeNode;
    }
    interface InferTypeNode extends TypeNode {
        kind: SyntaxKind.InferType;
        typeParameter: TypeParameterDeclaration;
    }
    interface ParenthesizedTypeNode extends TypeNode {
        kind: SyntaxKind.ParenthesizedType;
        type: TypeNode;
    }
    interface TypeOperatorNode extends TypeNode {
        kind: SyntaxKind.TypeOperator;
        operator: SyntaxKind.KeyOfKeyword | SyntaxKind.UniqueKeyword | SyntaxKind.ReadonlyKeyword;
        type: TypeNode;
    }
    interface IndexedAccessTypeNode extends TypeNode {
        kind: SyntaxKind.IndexedAccessType;
        objectType: TypeNode;
        indexType: TypeNode;
    }
    interface MappedTypeNode extends TypeNode, Declaration {
        kind: SyntaxKind.MappedType;
        readonlyToken?: ReadonlyToken | PlusToken | MinusToken;
        typeParameter: TypeParameterDeclaration;
        questionToken?: QuestionToken | PlusToken | MinusToken;
        type?: TypeNode;
    }
    interface LiteralTypeNode extends TypeNode {
        kind: SyntaxKind.LiteralType;
        literal: BooleanLiteral | LiteralExpression | PrefixUnaryExpression;
    }
    interface StringLiteral extends LiteralExpression {
        kind: SyntaxKind.StringLiteral;
    }
    type StringLiteralLike = StringLiteral | NoSubstitutionTemplateLiteral;
    interface Expression extends Node {
        _expressionBrand: any;
    }
    interface OmittedExpression extends Expression {
        kind: SyntaxKind.OmittedExpression;
    }
    interface PartiallyEmittedExpression extends LeftHandSideExpression {
        kind: SyntaxKind.PartiallyEmittedExpression;
        expression: Expression;
    }
    interface UnaryExpression extends Expression {
        _unaryExpressionBrand: any;
    }
    /** Deprecated, please use UpdateExpression */
    type IncrementExpression = UpdateExpression;
    interface UpdateExpression extends UnaryExpression {
        _updateExpressionBrand: any;
    }
    type PrefixUnaryOperator = SyntaxKind.PlusPlusToken | SyntaxKind.MinusMinusToken | SyntaxKind.PlusToken | SyntaxKind.MinusToken | SyntaxKind.TildeToken | SyntaxKind.ExclamationToken;
    interface PrefixUnaryExpression extends UpdateExpression {
        kind: SyntaxKind.PrefixUnaryExpression;
        operator: PrefixUnaryOperator;
        operand: UnaryExpression;
    }
    type PostfixUnaryOperator = SyntaxKind.PlusPlusToken | SyntaxKind.MinusMinusToken;
    interface PostfixUnaryExpression extends UpdateExpression {
        kind: SyntaxKind.PostfixUnaryExpression;
        operand: LeftHandSideExpression;
        operator: PostfixUnaryOperator;
    }
    interface LeftHandSideExpression extends UpdateExpression {
        _leftHandSideExpressionBrand: any;
    }
    interface MemberExpression extends LeftHandSideExpression {
        _memberExpressionBrand: any;
    }
    interface PrimaryExpression extends MemberExpression {
        _primaryExpressionBrand: any;
    }
    interface NullLiteral extends PrimaryExpression, TypeNode {
        kind: SyntaxKind.NullKeyword;
    }
    interface BooleanLiteral extends PrimaryExpression, TypeNode {
        kind: SyntaxKind.TrueKeyword | SyntaxKind.FalseKeyword;
    }
    interface ThisExpression extends PrimaryExpression, KeywordTypeNode {
        kind: SyntaxKind.ThisKeyword;
    }
    interface SuperExpression extends PrimaryExpression {
        kind: SyntaxKind.SuperKeyword;
    }
    interface ImportExpression extends PrimaryExpression {
        kind: SyntaxKind.ImportKeyword;
    }
    interface DeleteExpression extends UnaryExpression {
        kind: SyntaxKind.DeleteExpression;
        expression: UnaryExpression;
    }
    interface TypeOfExpression extends UnaryExpression {
        kind: SyntaxKind.TypeOfExpression;
        expression: UnaryExpression;
    }
    interface VoidExpression extends UnaryExpression {
        kind: SyntaxKind.VoidExpression;
        expression: UnaryExpression;
    }
    interface AwaitExpression extends UnaryExpression {
        kind: SyntaxKind.AwaitExpression;
        expression: UnaryExpression;
    }
    interface YieldExpression extends Expression {
        kind: SyntaxKind.YieldExpression;
        asteriskToken?: AsteriskToken;
        expression?: Expression;
    }
    interface SyntheticExpression extends Expression {
        kind: SyntaxKind.SyntheticExpression;
        isSpread: boolean;
        type: Type;
    }
    type ExponentiationOperator = SyntaxKind.AsteriskAsteriskToken;
    type MultiplicativeOperator = SyntaxKind.AsteriskToken | SyntaxKind.SlashToken | SyntaxKind.PercentToken;
    type MultiplicativeOperatorOrHigher = ExponentiationOperator | MultiplicativeOperator;
    type AdditiveOperator = SyntaxKind.PlusToken | SyntaxKind.MinusToken;
    type AdditiveOperatorOrHigher = MultiplicativeOperatorOrHigher | AdditiveOperator;
    type ShiftOperator = SyntaxKind.LessThanLessThanToken | SyntaxKind.GreaterThanGreaterThanToken | SyntaxKind.GreaterThanGreaterThanGreaterThanToken;
    type ShiftOperatorOrHigher = AdditiveOperatorOrHigher | ShiftOperator;
    type RelationalOperator = SyntaxKind.LessThanToken | SyntaxKind.LessThanEqualsToken | SyntaxKind.GreaterThanToken | SyntaxKind.GreaterThanEqualsToken | SyntaxKind.InstanceOfKeyword | SyntaxKind.InKeyword;
    type RelationalOperatorOrHigher = ShiftOperatorOrHigher | RelationalOperator;
    type EqualityOperator = SyntaxKind.EqualsEqualsToken | SyntaxKind.EqualsEqualsEqualsToken | SyntaxKind.ExclamationEqualsEqualsToken | SyntaxKind.ExclamationEqualsToken;
    type EqualityOperatorOrHigher = RelationalOperatorOrHigher | EqualityOperator;
    type BitwiseOperator = SyntaxKind.AmpersandToken | SyntaxKind.BarToken | SyntaxKind.CaretToken;
    type BitwiseOperatorOrHigher = EqualityOperatorOrHigher | BitwiseOperator;
    type LogicalOperator = SyntaxKind.AmpersandAmpersandToken | SyntaxKind.BarBarToken;
    type LogicalOperatorOrHigher = BitwiseOperatorOrHigher | LogicalOperator;
    type CompoundAssignmentOperator = SyntaxKind.PlusEqualsToken | SyntaxKind.MinusEqualsToken | SyntaxKind.AsteriskAsteriskEqualsToken | SyntaxKind.AsteriskEqualsToken | SyntaxKind.SlashEqualsToken | SyntaxKind.PercentEqualsToken | SyntaxKind.AmpersandEqualsToken | SyntaxKind.BarEqualsToken | SyntaxKind.CaretEqualsToken | SyntaxKind.LessThanLessThanEqualsToken | SyntaxKind.GreaterThanGreaterThanGreaterThanEqualsToken | SyntaxKind.GreaterThanGreaterThanEqualsToken;
    type AssignmentOperator = SyntaxKind.EqualsToken | CompoundAssignmentOperator;
    type AssignmentOperatorOrHigher = LogicalOperatorOrHigher | AssignmentOperator;
    type BinaryOperator = AssignmentOperatorOrHigher | SyntaxKind.CommaToken;
    type BinaryOperatorToken = Token<BinaryOperator>;
    interface BinaryExpression extends Expression, Declaration {
        kind: SyntaxKind.BinaryExpression;
        left: Expression;
        operatorToken: BinaryOperatorToken;
        right: Expression;
    }
    type AssignmentOperatorToken = Token<AssignmentOperator>;
    interface AssignmentExpression<TOperator extends AssignmentOperatorToken> extends BinaryExpression {
        left: LeftHandSideExpression;
        operatorToken: TOperator;
    }
    interface ObjectDestructuringAssignment extends AssignmentExpression<EqualsToken> {
        left: ObjectLiteralExpression;
    }
    interface ArrayDestructuringAssignment extends AssignmentExpression<EqualsToken> {
        left: ArrayLiteralExpression;
    }
    type DestructuringAssignment = ObjectDestructuringAssignment | ArrayDestructuringAssignment;
    type BindingOrAssignmentElement = VariableDeclaration | ParameterDeclaration | BindingElement | PropertyAssignment | ShorthandPropertyAssignment | SpreadAssignment | OmittedExpression | SpreadElement | ArrayLiteralExpression | ObjectLiteralExpression | AssignmentExpression<EqualsToken> | Identifier | PropertyAccessExpression | ElementAccessExpression;
    type BindingOrAssignmentElementRestIndicator = DotDotDotToken | SpreadElement | SpreadAssignment;
    type BindingOrAssignmentElementTarget = BindingOrAssignmentPattern | Identifier | PropertyAccessExpression | ElementAccessExpression | OmittedExpression;
    type ObjectBindingOrAssignmentPattern = ObjectBindingPattern | ObjectLiteralExpression;
    type ArrayBindingOrAssignmentPattern = ArrayBindingPattern | ArrayLiteralExpression;
    type AssignmentPattern = ObjectLiteralExpression | ArrayLiteralExpression;
    type BindingOrAssignmentPattern = ObjectBindingOrAssignmentPattern | ArrayBindingOrAssignmentPattern;
    interface ConditionalExpression extends Expression {
        kind: SyntaxKind.ConditionalExpression;
        condition: Expression;
        questionToken: QuestionToken;
        whenTrue: Expression;
        colonToken: ColonToken;
        whenFalse: Expression;
    }
    type FunctionBody = Block;
    type ConciseBody = FunctionBody | Expression;
    interface FunctionExpression extends PrimaryExpression, FunctionLikeDeclarationBase, JSDocContainer {
        kind: SyntaxKind.FunctionExpression;
        name?: Identifier;
        body: FunctionBody;
    }
    interface ArrowFunction extends Expression, FunctionLikeDeclarationBase, JSDocContainer {
        kind: SyntaxKind.ArrowFunction;
        equalsGreaterThanToken: EqualsGreaterThanToken;
        body: ConciseBody;
        name: never;
    }
    interface LiteralLikeNode extends Node {
        text: string;
        isUnterminated?: boolean;
        hasExtendedUnicodeEscape?: boolean;
    }
    interface LiteralExpression extends LiteralLikeNode, PrimaryExpression {
        _literalExpressionBrand: any;
    }
    interface RegularExpressionLiteral extends LiteralExpression {
        kind: SyntaxKind.RegularExpressionLiteral;
    }
    interface NoSubstitutionTemplateLiteral extends LiteralExpression {
        kind: SyntaxKind.NoSubstitutionTemplateLiteral;
    }
    enum TokenFlags {
        None = 0,
        Scientific = 16,
        Octal = 32,
        HexSpecifier = 64,
        BinarySpecifier = 128,
        OctalSpecifier = 256,
    }
    interface NumericLiteral extends LiteralExpression {
        kind: SyntaxKind.NumericLiteral;
    }
    interface BigIntLiteral extends LiteralExpression {
        kind: SyntaxKind.BigIntLiteral;
    }
    interface TemplateHead extends LiteralLikeNode {
        kind: SyntaxKind.TemplateHead;
        parent: TemplateExpression;
    }
    interface TemplateMiddle extends LiteralLikeNode {
        kind: SyntaxKind.TemplateMiddle;
        parent: TemplateSpan;
    }
    interface TemplateTail extends LiteralLikeNode {
        kind: SyntaxKind.TemplateTail;
        parent: TemplateSpan;
    }
    type TemplateLiteral = TemplateExpression | NoSubstitutionTemplateLiteral;
    interface TemplateExpression extends PrimaryExpression {
        kind: SyntaxKind.TemplateExpression;
        head: TemplateHead;
        templateSpans: NodeArray<TemplateSpan>;
    }
    interface TemplateSpan extends Node {
        kind: SyntaxKind.TemplateSpan;
        parent: TemplateExpression;
        expression: Expression;
        literal: TemplateMiddle | TemplateTail;
    }
    interface ParenthesizedExpression extends PrimaryExpression, JSDocContainer {
        kind: SyntaxKind.ParenthesizedExpression;
        expression: Expression;
    }
    interface ArrayLiteralExpression extends PrimaryExpression {
        kind: SyntaxKind.ArrayLiteralExpression;
        elements: NodeArray<Expression>;
    }
    interface SpreadElement extends Expression {
        kind: SyntaxKind.SpreadElement;
        parent: ArrayLiteralExpression | CallExpression | NewExpression;
        expression: Expression;
    }
    /**
     * This interface is a base interface for ObjectLiteralExpression and JSXAttributes to extend from. JSXAttributes is similar to
     * ObjectLiteralExpression in that it contains array of properties; however, JSXAttributes' properties can only be
     * JSXAttribute or JSXSpreadAttribute. ObjectLiteralExpression, on the other hand, can only have properties of type
     * ObjectLiteralElement (e.g. PropertyAssignment, ShorthandPropertyAssignment etc.)
     */
    interface ObjectLiteralExpressionBase<T extends ObjectLiteralElement> extends PrimaryExpression, Declaration {
        properties: NodeArray<T>;
    }
    interface ObjectLiteralExpression extends ObjectLiteralExpressionBase<ObjectLiteralElementLike> {
        kind: SyntaxKind.ObjectLiteralExpression;
    }
    type EntityNameExpression = Identifier | PropertyAccessEntityNameExpression;
    type EntityNameOrEntityNameExpression = EntityName | EntityNameExpression;
    interface PropertyAccessExpression extends MemberExpression, NamedDeclaration {
        kind: SyntaxKind.PropertyAccessExpression;
        expression: LeftHandSideExpression;
        name: Identifier;
    }
    interface SuperPropertyAccessExpression extends PropertyAccessExpression {
        expression: SuperExpression;
    }
    /** Brand for a PropertyAccessExpression which, like a QualifiedName, consists of a sequence of identifiers separated by dots. */
    interface PropertyAccessEntityNameExpression extends PropertyAccessExpression {
        _propertyAccessExpressionLikeQualifiedNameBrand?: any;
        expression: EntityNameExpression;
    }
    interface ElementAccessExpression extends MemberExpression {
        kind: SyntaxKind.ElementAccessExpression;
        expression: LeftHandSideExpression;
        argumentExpression: Expression;
    }
    interface SuperElementAccessExpression extends ElementAccessExpression {
        expression: SuperExpression;
    }
    type SuperProperty = SuperPropertyAccessExpression | SuperElementAccessExpression;
    interface CallExpression extends LeftHandSideExpression, Declaration {
        kind: SyntaxKind.CallExpression;
        expression: LeftHandSideExpression;
        typeArguments?: NodeArray<TypeNode>;
        arguments: NodeArray<Expression>;
    }
    interface SuperCall extends CallExpression {
        expression: SuperExpression;
    }
    interface ImportCall extends CallExpression {
        expression: ImportExpression;
    }
    interface ExpressionWithTypeArguments extends NodeWithTypeArguments {
        kind: SyntaxKind.ExpressionWithTypeArguments;
        parent: HeritageClause | JSDocAugmentsTag;
        expression: LeftHandSideExpression;
    }
    interface NewExpression extends PrimaryExpression, Declaration {
        kind: SyntaxKind.NewExpression;
        expression: LeftHandSideExpression;
        typeArguments?: NodeArray<TypeNode>;
        arguments?: NodeArray<Expression>;
    }
    interface TaggedTemplateExpression extends MemberExpression {
        kind: SyntaxKind.TaggedTemplateExpression;
        tag: LeftHandSideExpression;
        typeArguments?: NodeArray<TypeNode>;
        template: TemplateLiteral;
    }
    type CallLikeExpression = CallExpression | NewExpression | TaggedTemplateExpression | Decorator | JsxOpeningLikeElement;
    interface AsExpression extends Expression {
        kind: SyntaxKind.AsExpression;
        expression: Expression;
        type: TypeNode;
    }
    interface TypeAssertion extends UnaryExpression {
        kind: SyntaxKind.TypeAssertionExpression;
        type: TypeNode;
        expression: UnaryExpression;
    }
    type AssertionExpression = TypeAssertion | AsExpression;
    interface NonNullExpression extends LeftHandSideExpression {
        kind: SyntaxKind.NonNullExpression;
        expression: Expression;
    }
    interface MetaProperty extends PrimaryExpression {
        kind: SyntaxKind.MetaProperty;
        keywordToken: SyntaxKind.NewKeyword | SyntaxKind.ImportKeyword;
        name: Identifier;
    }
    interface JsxElement extends PrimaryExpression {
        kind: SyntaxKind.JsxElement;
        openingElement: JsxOpeningElement;
        children: NodeArray<JsxChild>;
        closingElement: JsxClosingElement;
    }
    type JsxOpeningLikeElement = JsxSelfClosingElement | JsxOpeningElement;
    type JsxAttributeLike = JsxAttribute | JsxSpreadAttribute;
    type JsxTagNameExpression = Identifier | ThisExpression | JsxTagNamePropertyAccess;
    interface JsxTagNamePropertyAccess extends PropertyAccessExpression {
        expression: JsxTagNameExpression;
    }
    interface JsxAttributes extends ObjectLiteralExpressionBase<JsxAttributeLike> {
        parent: JsxOpeningLikeElement;
    }
    interface JsxOpeningElement extends Expression {
        kind: SyntaxKind.JsxOpeningElement;
        parent: JsxElement;
        tagName: JsxTagNameExpression;
        typeArguments?: NodeArray<TypeNode>;
        attributes: JsxAttributes;
    }
    interface JsxSelfClosingElement extends PrimaryExpression {
        kind: SyntaxKind.JsxSelfClosingElement;
        tagName: JsxTagNameExpression;
        typeArguments?: NodeArray<TypeNode>;
        attributes: JsxAttributes;
    }
    interface JsxFragment extends PrimaryExpression {
        kind: SyntaxKind.JsxFragment;
        openingFragment: JsxOpeningFragment;
        children: NodeArray<JsxChild>;
        closingFragment: JsxClosingFragment;
    }
    interface JsxOpeningFragment extends Expression {
        kind: SyntaxKind.JsxOpeningFragment;
        parent: JsxFragment;
    }
    interface JsxClosingFragment extends Expression {
        kind: SyntaxKind.JsxClosingFragment;
        parent: JsxFragment;
    }
    interface JsxAttribute extends ObjectLiteralElement {
        kind: SyntaxKind.JsxAttribute;
        parent: JsxAttributes;
        name: Identifier;
        initializer?: StringLiteral | JsxExpression;
    }
    interface JsxSpreadAttribute extends ObjectLiteralElement {
        kind: SyntaxKind.JsxSpreadAttribute;
        parent: JsxAttributes;
        expression: Expression;
    }
    interface JsxClosingElement extends Node {
        kind: SyntaxKind.JsxClosingElement;
        parent: JsxElement;
        tagName: JsxTagNameExpression;
    }
    interface JsxExpression extends Expression {
        kind: SyntaxKind.JsxExpression;
        parent: JsxElement | JsxAttributeLike;
        dotDotDotToken?: Token<SyntaxKind.DotDotDotToken>;
        expression?: Expression;
    }
    interface JsxText extends LiteralLikeNode {
        kind: SyntaxKind.JsxText;
        containsOnlyTriviaWhiteSpaces: boolean;
        parent: JsxElement;
    }
    type JsxChild = JsxText | JsxExpression | JsxElement | JsxSelfClosingElement | JsxFragment;
    interface Statement extends Node {
        _statementBrand: any;
    }
    interface NotEmittedStatement extends Statement {
        kind: SyntaxKind.NotEmittedStatement;
    }
    /**
     * A list of comma-separated expressions. This node is only created by transformations.
     */
    interface CommaListExpression extends Expression {
        kind: SyntaxKind.CommaListExpression;
        elements: NodeArray<Expression>;
    }
    interface EmptyStatement extends Statement {
        kind: SyntaxKind.EmptyStatement;
    }
    interface DebuggerStatement extends Statement {
        kind: SyntaxKind.DebuggerStatement;
    }
    interface MissingDeclaration extends DeclarationStatement {
        kind: SyntaxKind.MissingDeclaration;
        name?: Identifier;
    }
    type BlockLike = SourceFile | Block | ModuleBlock | CaseOrDefaultClause;
    interface Block extends Statement {
        kind: SyntaxKind.Block;
        statements: NodeArray<Statement>;
    }
    interface VariableStatement extends Statement, JSDocContainer {
        kind: SyntaxKind.VariableStatement;
        declarationList: VariableDeclarationList;
    }
    interface ExpressionStatement extends Statement, JSDocContainer {
        kind: SyntaxKind.ExpressionStatement;
        expression: Expression;
    }
    interface IfStatement extends Statement {
        kind: SyntaxKind.IfStatement;
        expression: Expression;
        thenStatement: Statement;
        elseStatement?: Statement;
    }
    interface IterationStatement extends Statement {
        statement: Statement;
    }
    interface DoStatement extends IterationStatement {
        kind: SyntaxKind.DoStatement;
        expression: Expression;
    }
    interface WhileStatement extends IterationStatement {
        kind: SyntaxKind.WhileStatement;
        expression: Expression;
    }
    type ForInitializer = VariableDeclarationList | Expression;
    interface ForStatement extends IterationStatement {
        kind: SyntaxKind.ForStatement;
        initializer?: ForInitializer;
        condition?: Expression;
        incrementor?: Expression;
    }
    type ForInOrOfStatement = ForInStatement | ForOfStatement;
    interface ForInStatement extends IterationStatement {
        kind: SyntaxKind.ForInStatement;
        initializer: ForInitializer;
        expression: Expression;
    }
    interface ForOfStatement extends IterationStatement {
        kind: SyntaxKind.ForOfStatement;
        awaitModifier?: AwaitKeywordToken;
        initializer: ForInitializer;
        expression: Expression;
    }
    interface BreakStatement extends Statement {
        kind: SyntaxKind.BreakStatement;
        label?: Identifier;
    }
    interface ContinueStatement extends Statement {
        kind: SyntaxKind.ContinueStatement;
        label?: Identifier;
    }
    type BreakOrContinueStatement = BreakStatement | ContinueStatement;
    interface ReturnStatement extends Statement {
        kind: SyntaxKind.ReturnStatement;
        expression?: Expression;
    }
    interface WithStatement extends Statement {
        kind: SyntaxKind.WithStatement;
        expression: Expression;
        statement: Statement;
    }
    interface SwitchStatement extends Statement {
        kind: SyntaxKind.SwitchStatement;
        expression: Expression;
        caseBlock: CaseBlock;
        possiblyExhaustive?: boolean;
    }
    interface CaseBlock extends Node {
        kind: SyntaxKind.CaseBlock;
        parent: SwitchStatement;
        clauses: NodeArray<CaseOrDefaultClause>;
    }
    interface CaseClause extends Node {
        kind: SyntaxKind.CaseClause;
        parent: CaseBlock;
        expression: Expression;
        statements: NodeArray<Statement>;
    }
    interface DefaultClause extends Node {
        kind: SyntaxKind.DefaultClause;
        parent: CaseBlock;
        statements: NodeArray<Statement>;
    }
    type CaseOrDefaultClause = CaseClause | DefaultClause;
    interface LabeledStatement extends Statement, JSDocContainer {
        kind: SyntaxKind.LabeledStatement;
        label: Identifier;
        statement: Statement;
    }
    interface ThrowStatement extends Statement {
        kind: SyntaxKind.ThrowStatement;
        expression?: Expression;
    }
    interface TryStatement extends Statement {
        kind: SyntaxKind.TryStatement;
        tryBlock: Block;
        catchClause?: CatchClause;
        finallyBlock?: Block;
    }
    interface CatchClause extends Node {
        kind: SyntaxKind.CatchClause;
        parent: TryStatement;
        variableDeclaration?: VariableDeclaration;
        block: Block;
    }
    type ObjectTypeDeclaration = ClassLikeDeclaration | InterfaceDeclaration | TypeLiteralNode;
    type DeclarationWithTypeParameters = DeclarationWithTypeParameterChildren | JSDocTypedefTag | JSDocCallbackTag | JSDocSignature;
    type DeclarationWithTypeParameterChildren = SignatureDeclaration | ClassLikeDeclaration | InterfaceDeclaration | TypeAliasDeclaration | JSDocTemplateTag;
    interface ClassLikeDeclarationBase extends NamedDeclaration, JSDocContainer {
        kind: SyntaxKind.ClassDeclaration | SyntaxKind.ClassExpression;
        name?: Identifier;
        typeParameters?: NodeArray<TypeParameterDeclaration>;
        heritageClauses?: NodeArray<HeritageClause>;
        members: NodeArray<ClassElement>;
    }
    interface ClassDeclaration extends ClassLikeDeclarationBase, DeclarationStatement {
        kind: SyntaxKind.ClassDeclaration;
        /** May be undefined in `export default class { ... }`. */
        name?: Identifier;
    }
    interface ClassExpression extends ClassLikeDeclarationBase, PrimaryExpression {
        kind: SyntaxKind.ClassExpression;
    }
    type ClassLikeDeclaration = ClassDeclaration | ClassExpression;
    interface ClassElement extends NamedDeclaration {
        _classElementBrand: any;
        name?: PropertyName;
    }
    interface TypeElement extends NamedDeclaration {
        _typeElementBrand: any;
        name?: PropertyName;
        questionToken?: QuestionToken;
    }
    interface InterfaceDeclaration extends DeclarationStatement, JSDocContainer {
        kind: SyntaxKind.InterfaceDeclaration;
        name: Identifier;
        typeParameters?: NodeArray<TypeParameterDeclaration>;
        heritageClauses?: NodeArray<HeritageClause>;
        members: NodeArray<TypeElement>;
    }
    interface HeritageClause extends Node {
        kind: SyntaxKind.HeritageClause;
        parent: InterfaceDeclaration | ClassLikeDeclaration;
        token: SyntaxKind.ExtendsKeyword | SyntaxKind.ImplementsKeyword;
        types: NodeArray<ExpressionWithTypeArguments>;
    }
    interface TypeAliasDeclaration extends DeclarationStatement, JSDocContainer {
        kind: SyntaxKind.TypeAliasDeclaration;
        name: Identifier;
        typeParameters?: NodeArray<TypeParameterDeclaration>;
        type: TypeNode;
    }
    interface EnumMember extends NamedDeclaration, JSDocContainer {
        kind: SyntaxKind.EnumMember;
        parent: EnumDeclaration;
        name: PropertyName;
        initializer?: Expression;
    }
    interface EnumDeclaration extends DeclarationStatement, JSDocContainer {
        kind: SyntaxKind.EnumDeclaration;
        name: Identifier;
        members: NodeArray<EnumMember>;
    }
    type ModuleName = Identifier | StringLiteral;
    type ModuleBody = NamespaceBody | JSDocNamespaceBody;
    interface ModuleDeclaration extends DeclarationStatement, JSDocContainer {
        kind: SyntaxKind.ModuleDeclaration;
        parent: ModuleBody | SourceFile;
        name: ModuleName;
        body?: ModuleBody | JSDocNamespaceDeclaration;
    }
    type NamespaceBody = ModuleBlock | NamespaceDeclaration;
    interface NamespaceDeclaration extends ModuleDeclaration {
        name: Identifier;
        body: NamespaceBody;
    }
    type JSDocNamespaceBody = Identifier | JSDocNamespaceDeclaration;
    interface JSDocNamespaceDeclaration extends ModuleDeclaration {
        name: Identifier;
        body?: JSDocNamespaceBody;
    }
    interface ModuleBlock extends Node, Statement {
        kind: SyntaxKind.ModuleBlock;
        parent: ModuleDeclaration;
        statements: NodeArray<Statement>;
    }
    type ModuleReference = EntityName | ExternalModuleReference;
    /**
     * One of:
     * - import x = require("mod");
     * - import x = M.x;
     */
    interface ImportEqualsDeclaration extends DeclarationStatement, JSDocContainer {
        kind: SyntaxKind.ImportEqualsDeclaration;
        parent: SourceFile | ModuleBlock;
        name: Identifier;
        moduleReference: ModuleReference;
    }
    interface ExternalModuleReference extends Node {
        kind: SyntaxKind.ExternalModuleReference;
        parent: ImportEqualsDeclaration;
        expression: Expression;
    }
    interface ImportDeclaration extends Statement {
        kind: SyntaxKind.ImportDeclaration;
        parent: SourceFile | ModuleBlock;
        importClause?: ImportClause;
        /** If this is not a StringLiteral it will be a grammar error. */
        moduleSpecifier: Expression;
    }
    type NamedImportBindings = NamespaceImport | NamedImports;
    interface ImportClause extends NamedDeclaration {
        kind: SyntaxKind.ImportClause;
        parent: ImportDeclaration;
        name?: Identifier;
        namedBindings?: NamedImportBindings;
    }
    interface NamespaceImport extends NamedDeclaration {
        kind: SyntaxKind.NamespaceImport;
        parent: ImportClause;
        name: Identifier;
    }
    interface NamespaceExportDeclaration extends DeclarationStatement {
        kind: SyntaxKind.NamespaceExportDeclaration;
        name: Identifier;
    }
    interface ExportDeclaration extends DeclarationStatement, JSDocContainer {
        kind: SyntaxKind.ExportDeclaration;
        parent: SourceFile | ModuleBlock;
        /** Will not be assigned in the case of `export * from "foo";` */
        exportClause?: NamedExports;
        /** If this is not a StringLiteral it will be a grammar error. */
        moduleSpecifier?: Expression;
    }
    interface NamedImports extends Node {
        kind: SyntaxKind.NamedImports;
        parent: ImportClause;
        elements: NodeArray<ImportSpecifier>;
    }
    interface NamedExports extends Node {
        kind: SyntaxKind.NamedExports;
        parent: ExportDeclaration;
        elements: NodeArray<ExportSpecifier>;
    }
    type NamedImportsOrExports = NamedImports | NamedExports;
    interface ImportSpecifier extends NamedDeclaration {
        kind: SyntaxKind.ImportSpecifier;
        parent: NamedImports;
        propertyName?: Identifier;
        name: Identifier;
    }
    interface ExportSpecifier extends NamedDeclaration {
        kind: SyntaxKind.ExportSpecifier;
        parent: NamedExports;
        propertyName?: Identifier;
        name: Identifier;
    }
    type ImportOrExportSpecifier = ImportSpecifier | ExportSpecifier;
    /**
     * This is either an `export =` or an `export default` declaration.
     * Unless `isExportEquals` is set, this node was parsed as an `export default`.
     */
    interface ExportAssignment extends DeclarationStatement {
        kind: SyntaxKind.ExportAssignment;
        parent: SourceFile;
        isExportEquals?: boolean;
        expression: Expression;
    }
    interface FileReference extends TextRange {
        fileName: string;
    }
    interface CheckJsDirective extends TextRange {
        enabled: boolean;
    }
    type CommentKind = SyntaxKind.SingleLineCommentTrivia | SyntaxKind.MultiLineCommentTrivia;
    interface CommentRange extends TextRange {
        hasTrailingNewLine?: boolean;
        kind: CommentKind;
    }
    interface SynthesizedComment extends CommentRange {
        text: string;
        pos: -1;
        end: -1;
    }
    interface JSDocTypeExpression extends TypeNode {
        kind: SyntaxKind.JSDocTypeExpression;
        type: TypeNode;
    }
    interface JSDocType extends TypeNode {
        _jsDocTypeBrand: any;
    }
    interface JSDocAllType extends JSDocType {
        kind: SyntaxKind.JSDocAllType;
    }
    interface JSDocUnknownType extends JSDocType {
        kind: SyntaxKind.JSDocUnknownType;
    }
    interface JSDocNonNullableType extends JSDocType {
        kind: SyntaxKind.JSDocNonNullableType;
        type: TypeNode;
    }
    interface JSDocNullableType extends JSDocType {
        kind: SyntaxKind.JSDocNullableType;
        type: TypeNode;
    }
    interface JSDocOptionalType extends JSDocType {
        kind: SyntaxKind.JSDocOptionalType;
        type: TypeNode;
    }
    interface JSDocFunctionType extends JSDocType, SignatureDeclarationBase {
        kind: SyntaxKind.JSDocFunctionType;
    }
    interface JSDocVariadicType extends JSDocType {
        kind: SyntaxKind.JSDocVariadicType;
        type: TypeNode;
    }
    type JSDocTypeReferencingNode = JSDocVariadicType | JSDocOptionalType | JSDocNullableType | JSDocNonNullableType;
    interface JSDoc extends Node {
        kind: SyntaxKind.JSDocComment;
        parent: HasJSDoc;
        tags?: NodeArray<JSDocTag>;
        comment?: string;
    }
    interface JSDocTag extends Node {
        parent: JSDoc | JSDocTypeLiteral;
        tagName: Identifier;
        comment?: string;
    }
    interface JSDocUnknownTag extends JSDocTag {
        kind: SyntaxKind.JSDocTag;
    }
    /**
     * Note that `@extends` is a synonym of `@augments`.
     * Both tags are represented by this interface.
     */
    interface JSDocAugmentsTag extends JSDocTag {
        kind: SyntaxKind.JSDocAugmentsTag;
        class: ExpressionWithTypeArguments & {
            expression: Identifier | PropertyAccessEntityNameExpression;
        };
    }
    interface JSDocClassTag extends JSDocTag {
        kind: SyntaxKind.JSDocClassTag;
    }
    interface JSDocEnumTag extends JSDocTag {
        kind: SyntaxKind.JSDocEnumTag;
        typeExpression?: JSDocTypeExpression;
    }
    interface JSDocThisTag extends JSDocTag {
        kind: SyntaxKind.JSDocThisTag;
        typeExpression?: JSDocTypeExpression;
    }
    interface JSDocTemplateTag extends JSDocTag {
        kind: SyntaxKind.JSDocTemplateTag;
        constraint: JSDocTypeExpression | undefined;
        typeParameters: NodeArray<TypeParameterDeclaration>;
    }
    interface JSDocReturnTag extends JSDocTag {
        kind: SyntaxKind.JSDocReturnTag;
        typeExpression?: JSDocTypeExpression;
    }
    interface JSDocTypeTag extends JSDocTag {
        kind: SyntaxKind.JSDocTypeTag;
        typeExpression: JSDocTypeExpression;
    }
    interface JSDocTypedefTag extends JSDocTag, NamedDeclaration {
        parent: JSDoc;
        kind: SyntaxKind.JSDocTypedefTag;
        fullName?: JSDocNamespaceDeclaration | Identifier;
        name?: Identifier;
        typeExpression?: JSDocTypeExpression | JSDocTypeLiteral;
    }
    interface JSDocCallbackTag extends JSDocTag, NamedDeclaration {
        parent: JSDoc;
        kind: SyntaxKind.JSDocCallbackTag;
        fullName?: JSDocNamespaceDeclaration | Identifier;
        name?: Identifier;
        typeExpression: JSDocSignature;
    }
    interface JSDocSignature extends JSDocType, Declaration {
        kind: SyntaxKind.JSDocSignature;
        typeParameters?: ReadonlyArray<JSDocTemplateTag>;
        parameters: ReadonlyArray<JSDocParameterTag>;
        type: JSDocReturnTag | undefined;
    }
    interface JSDocPropertyLikeTag extends JSDocTag, Declaration {
        parent: JSDoc;
        name: EntityName;
        typeExpression?: JSDocTypeExpression;
        /** Whether the property name came before the type -- non-standard for JSDoc, but Typescript-like */
        isNameFirst: boolean;
        isBracketed: boolean;
    }
    interface JSDocPropertyTag extends JSDocPropertyLikeTag {
        kind: SyntaxKind.JSDocPropertyTag;
    }
    interface JSDocParameterTag extends JSDocPropertyLikeTag {
        kind: SyntaxKind.JSDocParameterTag;
    }
    interface JSDocTypeLiteral extends JSDocType {
        kind: SyntaxKind.JSDocTypeLiteral;
        jsDocPropertyTags?: ReadonlyArray<JSDocPropertyLikeTag>;
        /** If true, then this type literal represents an *array* of its type. */
        isArrayType?: boolean;
    }
    enum FlowFlags {
        Unreachable = 1,
        Start = 2,
        BranchLabel = 4,
        LoopLabel = 8,
        Assignment = 16,
        TrueCondition = 32,
        FalseCondition = 64,
        SwitchClause = 128,
        ArrayMutation = 256,
        Referenced = 512,
        Shared = 1024,
        PreFinally = 2048,
        AfterFinally = 4096,
        Label = 12,
        Condition = 96
    }
    interface FlowLock {
        locked?: boolean;
    }
    interface AfterFinallyFlow extends FlowNodeBase, FlowLock {
        antecedent: FlowNode;
    }
    interface PreFinallyFlow extends FlowNodeBase {
        antecedent: FlowNode;
        lock: FlowLock;
    }
    type FlowNode = AfterFinallyFlow | PreFinallyFlow | FlowStart | FlowLabel | FlowAssignment | FlowCondition | FlowSwitchClause | FlowArrayMutation;
    interface FlowNodeBase {
        flags: FlowFlags;
        id?: number;
    }
    interface FlowStart extends FlowNodeBase {
        container?: FunctionExpression | ArrowFunction | MethodDeclaration;
    }
    interface FlowLabel extends FlowNodeBase {
        antecedents: FlowNode[] | undefined;
    }
    interface FlowAssignment extends FlowNodeBase {
        node: Expression | VariableDeclaration | BindingElement;
        antecedent: FlowNode;
    }
    interface FlowCondition extends FlowNodeBase {
        expression: Expression;
        antecedent: FlowNode;
    }
    interface FlowSwitchClause extends FlowNodeBase {
        switchStatement: SwitchStatement;
        clauseStart: number;
        clauseEnd: number;
        antecedent: FlowNode;
    }
    interface FlowArrayMutation extends FlowNodeBase {
        node: CallExpression | BinaryExpression;
        antecedent: FlowNode;
    }
    type FlowType = Type | IncompleteType;
    interface IncompleteType {
        flags: TypeFlags;
        type: Type;
    }
    interface AmdDependency {
        path: string;
        name?: string;
    }
    interface SourceFile extends Declaration {
        kind: SyntaxKind.SourceFile;
        statements: NodeArray<Statement>;
        endOfFileToken: Token<SyntaxKind.EndOfFileToken>;
        fileName: string;
        text: string;
        amdDependencies: ReadonlyArray<AmdDependency>;
        moduleName?: string;
        referencedFiles: ReadonlyArray<FileReference>;
        typeReferenceDirectives: ReadonlyArray<FileReference>;
        libReferenceDirectives: ReadonlyArray<FileReference>;
        languageVariant: LanguageVariant;
        isDeclarationFile: boolean;
        /**
         * lib.d.ts should have a reference comment like
         *
         *  /// <reference no-default-lib="true"/>
         *
         * If any other file has this comment, it signals not to include lib.d.ts
         * because this containing file is intended to act as a default library.
         */
        hasNoDefaultLib: boolean;
        languageVersion: ScriptTarget;
    }
    interface Bundle extends Node {
        kind: SyntaxKind.Bundle;
        prepends: ReadonlyArray<InputFiles | UnparsedSource>;
        sourceFiles: ReadonlyArray<SourceFile>;
    }
    interface InputFiles extends Node {
        kind: SyntaxKind.InputFiles;
        javascriptPath?: string;
        javascriptText: string;
        javascriptMapPath?: string;
        javascriptMapText?: string;
        declarationPath?: string;
        declarationText: string;
        declarationMapPath?: string;
        declarationMapText?: string;
    }
    interface UnparsedSource extends Node {
        kind: SyntaxKind.UnparsedSource;
        fileName: string;
        text: string;
        prologues: ReadonlyArray<UnparsedPrologue>;
        helpers: ReadonlyArray<UnscopedEmitHelper> | undefined;
        referencedFiles: ReadonlyArray<FileReference>;
        typeReferenceDirectives: ReadonlyArray<string> | undefined;
        libReferenceDirectives: ReadonlyArray<FileReference>;
        hasNoDefaultLib?: boolean;
        sourceMapPath?: string;
        sourceMapText?: string;
        syntheticReferences?: ReadonlyArray<UnparsedSyntheticReference>;
        texts: ReadonlyArray<UnparsedSourceText>;
    }
    type UnparsedSourceText = UnparsedPrepend | UnparsedTextLike;
    type UnparsedNode = UnparsedPrologue | UnparsedSourceText | UnparsedSyntheticReference;
    interface UnparsedSection extends Node {
        kind: SyntaxKind;
        data?: string;
        parent: UnparsedSource;
    }
    interface UnparsedPrologue extends UnparsedSection {
        kind: SyntaxKind.UnparsedPrologue;
        data: string;
        parent: UnparsedSource;
    }
    interface UnparsedPrepend extends UnparsedSection {
        kind: SyntaxKind.UnparsedPrepend;
        data: string;
        parent: UnparsedSource;
        texts: ReadonlyArray<UnparsedTextLike>;
    }
    interface UnparsedTextLike extends UnparsedSection {
        kind: SyntaxKind.UnparsedText | SyntaxKind.UnparsedInternalText;
        parent: UnparsedSource;
    }
    interface UnparsedSyntheticReference extends UnparsedSection {
        kind: SyntaxKind.UnparsedSyntheticReference;
        parent: UnparsedSource;
    }
    interface JsonSourceFile extends SourceFile {
        statements: NodeArray<JsonObjectExpressionStatement>;
    }
    interface TsConfigSourceFile extends JsonSourceFile {
        extendedSourceFiles?: string[];
    }
    interface JsonMinusNumericLiteral extends PrefixUnaryExpression {
        kind: SyntaxKind.PrefixUnaryExpression;
        operator: SyntaxKind.MinusToken;
        operand: NumericLiteral;
    }
    interface JsonObjectExpressionStatement extends ExpressionStatement {
        expression: ObjectLiteralExpression | ArrayLiteralExpression | JsonMinusNumericLiteral | NumericLiteral | StringLiteral | BooleanLiteral | NullLiteral;
    }
    interface ScriptReferenceHost {
        getCompilerOptions(): CompilerOptions;
        getSourceFile(fileName: string): SourceFile | undefined;
        getSourceFileByPath(path: Path): SourceFile | undefined;
        getCurrentDirectory(): string;
    }
    interface ParseConfigHost {
        useCaseSensitiveFileNames: boolean;
        readDirectory(rootDir: string, extensions: ReadonlyArray<string>, excludes: ReadonlyArray<string> | undefined, includes: ReadonlyArray<string>, depth?: number): ReadonlyArray<string>;
        /**
         * Gets a value indicating whether the specified path exists and is a file.
         * @param path The path to test.
         */
        fileExists(path: string): boolean;
        readFile(path: string): string | undefined;
        trace?(s: string): void;
    }
    /**
     * Branded string for keeping track of when we've turned an ambiguous path
     * specified like "./blah" to an absolute path to an actual
     * tsconfig file, e.g. "/root/blah/tsconfig.json"
     */
    type ResolvedConfigFileName = string & {
        _isResolvedConfigFileName: never;
    };
    type WriteFileCallback = (fileName: string, data: string, writeByteOrderMark: boolean, onError?: (message: string) => void, sourceFiles?: ReadonlyArray<SourceFile>) => void;
    class OperationCanceledException {
    }
    interface CancellationToken {
        isCancellationRequested(): boolean;
        /** @throws OperationCanceledException if isCancellationRequested is true */
        throwIfCancellationRequested(): void;
    }
    interface Program extends ScriptReferenceHost {
        /**
         * Get a list of root file names that were passed to a 'createProgram'
         */
        getRootFileNames(): ReadonlyArray<string>;
        /**
         * Get a list of files in the program
         */
        getSourceFiles(): ReadonlyArray<SourceFile>;
        /**
         * Emits the JavaScript and declaration files.  If targetSourceFile is not specified, then
         * the JavaScript and declaration files will be produced for all the files in this program.
         * If targetSourceFile is specified, then only the JavaScript and declaration for that
         * specific file will be generated.
         *
         * If writeFile is not specified then the writeFile callback from the compiler host will be
         * used for writing the JavaScript and declaration files.  Otherwise, the writeFile parameter
         * will be invoked when writing the JavaScript and declaration files.
         */
        emit(targetSourceFile?: SourceFile, writeFile?: WriteFileCallback, cancellationToken?: CancellationToken, emitOnlyDtsFiles?: boolean, customTransformers?: CustomTransformers): EmitResult;
        getOptionsDiagnostics(cancellationToken?: CancellationToken): ReadonlyArray<Diagnostic>;
        getGlobalDiagnostics(cancellationToken?: CancellationToken): ReadonlyArray<Diagnostic>;
        getSyntacticDiagnostics(sourceFile?: SourceFile, cancellationToken?: CancellationToken): ReadonlyArray<DiagnosticWithLocation>;
        /** The first time this is called, it will return global diagnostics (no location). */
        getSemanticDiagnostics(sourceFile?: SourceFile, cancellationToken?: CancellationToken): ReadonlyArray<Diagnostic>;
        getDeclarationDiagnostics(sourceFile?: SourceFile, cancellationToken?: CancellationToken): ReadonlyArray<DiagnosticWithLocation>;
        getConfigFileParsingDiagnostics(): ReadonlyArray<Diagnostic>;
        /**
         * Gets a type checker that can be used to semantically analyze source files in the program.
         */
        getTypeChecker(): TypeChecker;
        isSourceFileFromExternalLibrary(file: SourceFile): boolean;
        isSourceFileDefaultLibrary(file: SourceFile): boolean;
        getProjectReferences(): ReadonlyArray<ProjectReference> | undefined;
        getResolvedProjectReferences(): ReadonlyArray<ResolvedProjectReference | undefined> | undefined;
    }
    interface ResolvedProjectReference {
        commandLine: ParsedCommandLine;
        sourceFile: SourceFile;
        references?: ReadonlyArray<ResolvedProjectReference | undefined>;
    }
    type CustomTransformerFactory = (context: TransformationContext) => CustomTransformer;
    interface CustomTransformer {
        transformSourceFile(node: SourceFile): SourceFile;
        transformBundle(node: Bundle): Bundle;
    }
    interface CustomTransformers {
        /** Custom transformers to evaluate before built-in .js transformations. */
        before?: (TransformerFactory<SourceFile> | CustomTransformerFactory)[];
        /** Custom transformers to evaluate after built-in .js transformations. */
        after?: (TransformerFactory<SourceFile> | CustomTransformerFactory)[];
        /** Custom transformers to evaluate after built-in .d.ts transformations. */
        afterDeclarations?: (TransformerFactory<Bundle | SourceFile> | CustomTransformerFactory)[];
    }
    interface SourceMapSpan {
        /** Line number in the .js file. */
        emittedLine: number;
        /** Column number in the .js file. */
        emittedColumn: number;
        /** Line number in the .ts file. */
        sourceLine: number;
        /** Column number in the .ts file. */
        sourceColumn: number;
        /** Optional name (index into names array) associated with this span. */
        nameIndex?: number;
        /** .ts file (index into sources array) associated with this span */
        sourceIndex: number;
    }
    /** Return code used by getEmitOutput function to indicate status of the function */
    enum ExitStatus {
        Success = 0,
        DiagnosticsPresent_OutputsSkipped = 1,
        DiagnosticsPresent_OutputsGenerated = 2
    }
    interface EmitResult {
        emitSkipped: boolean;
        /** Contains declaration emit diagnostics */
        diagnostics: ReadonlyArray<Diagnostic>;
        emittedFiles?: string[];
    }
    interface TypeChecker {
        getTypeOfSymbolAtLocation(symbol: Symbol, node: Node): Type;
        getDeclaredTypeOfSymbol(symbol: Symbol): Type;
        getPropertiesOfType(type: Type): Symbol[];
        getPropertyOfType(type: Type, propertyName: string): Symbol | undefined;
        getIndexInfoOfType(type: Type, kind: IndexKind): IndexInfo | undefined;
        getSignaturesOfType(type: Type, kind: SignatureKind): ReadonlyArray<Signature>;
        getIndexTypeOfType(type: Type, kind: IndexKind): Type | undefined;
        getBaseTypes(type: InterfaceType): BaseType[];
        getBaseTypeOfLiteralType(type: Type): Type;
        getWidenedType(type: Type): Type;
        getReturnTypeOfSignature(signature: Signature): Type;
        getNullableType(type: Type, flags: TypeFlags): Type;
        getNonNullableType(type: Type): Type;
        /** Note that the resulting nodes cannot be checked. */
        typeToTypeNode(type: Type, enclosingDeclaration?: Node, flags?: NodeBuilderFlags): TypeNode | undefined;
        /** Note that the resulting nodes cannot be checked. */
        signatureToSignatureDeclaration(signature: Signature, kind: SyntaxKind, enclosingDeclaration?: Node, flags?: NodeBuilderFlags): (SignatureDeclaration & {
            typeArguments?: NodeArray<TypeNode>;
        }) | undefined;
        /** Note that the resulting nodes cannot be checked. */
        indexInfoToIndexSignatureDeclaration(indexInfo: IndexInfo, kind: IndexKind, enclosingDeclaration?: Node, flags?: NodeBuilderFlags): IndexSignatureDeclaration | undefined;
        /** Note that the resulting nodes cannot be checked. */
        symbolToEntityName(symbol: Symbol, meaning: SymbolFlags, enclosingDeclaration?: Node, flags?: NodeBuilderFlags): EntityName | undefined;
        /** Note that the resulting nodes cannot be checked. */
        symbolToExpression(symbol: Symbol, meaning: SymbolFlags, enclosingDeclaration?: Node, flags?: NodeBuilderFlags): Expression | undefined;
        /** Note that the resulting nodes cannot be checked. */
        symbolToTypeParameterDeclarations(symbol: Symbol, enclosingDeclaration?: Node, flags?: NodeBuilderFlags): NodeArray<TypeParameterDeclaration> | undefined;
        /** Note that the resulting nodes cannot be checked. */
        symbolToParameterDeclaration(symbol: Symbol, enclosingDeclaration?: Node, flags?: NodeBuilderFlags): ParameterDeclaration | undefined;
        /** Note that the resulting nodes cannot be checked. */
        typeParameterToDeclaration(parameter: TypeParameter, enclosingDeclaration?: Node, flags?: NodeBuilderFlags): TypeParameterDeclaration | undefined;
        getSymbolsInScope(location: Node, meaning: SymbolFlags): Symbol[];
        getSymbolAtLocation(node: Node): Symbol | undefined;
        getSymbolsOfParameterPropertyDeclaration(parameter: ParameterDeclaration, parameterName: string): Symbol[];
        /**
         * The function returns the value (local variable) symbol of an identifier in the short-hand property assignment.
         * This is necessary as an identifier in short-hand property assignment can contains two meaning: property name and property value.
         */
        getShorthandAssignmentValueSymbol(location: Node): Symbol | undefined;
        getExportSpecifierLocalTargetSymbol(location: ExportSpecifier): Symbol | undefined;
        /**
         * If a symbol is a local symbol with an associated exported symbol, returns the exported symbol.
         * Otherwise returns its input.
         * For example, at `export type T = number;`:
         *     - `getSymbolAtLocation` at the location `T` will return the exported symbol for `T`.
         *     - But the result of `getSymbolsInScope` will contain the *local* symbol for `T`, not the exported symbol.
         *     - Calling `getExportSymbolOfSymbol` on that local symbol will return the exported symbol.
         */
        getExportSymbolOfSymbol(symbol: Symbol): Symbol;
        getPropertySymbolOfDestructuringAssignment(location: Identifier): Symbol | undefined;
        getTypeOfAssignmentPattern(pattern: AssignmentPattern): Type;
        getTypeAtLocation(node: Node): Type;
        getTypeFromTypeNode(node: TypeNode): Type;
        signatureToString(signature: Signature, enclosingDeclaration?: Node, flags?: TypeFormatFlags, kind?: SignatureKind): string;
        typeToString(type: Type, enclosingDeclaration?: Node, flags?: TypeFormatFlags): string;
        symbolToString(symbol: Symbol, enclosingDeclaration?: Node, meaning?: SymbolFlags, flags?: SymbolFormatFlags): string;
        typePredicateToString(predicate: TypePredicate, enclosingDeclaration?: Node, flags?: TypeFormatFlags): string;
        getFullyQualifiedName(symbol: Symbol): string;
        getAugmentedPropertiesOfType(type: Type): Symbol[];
        getRootSymbols(symbol: Symbol): ReadonlyArray<Symbol>;
        getContextualType(node: Expression): Type | undefined;
        /**
         * returns unknownSignature in the case of an error.
         * returns undefined if the node is not valid.
         * @param argumentCount Apparent number of arguments, passed in case of a possibly incomplete call. This should come from an ArgumentListInfo. See `signatureHelp.ts`.
         */
        getResolvedSignature(node: CallLikeExpression, candidatesOutArray?: Signature[], argumentCount?: number): Signature | undefined;
        getSignatureFromDeclaration(declaration: SignatureDeclaration): Signature | undefined;
        isImplementationOfOverload(node: SignatureDeclaration): boolean | undefined;
        isUndefinedSymbol(symbol: Symbol): boolean;
        isArgumentsSymbol(symbol: Symbol): boolean;
        isUnknownSymbol(symbol: Symbol): boolean;
        getConstantValue(node: EnumMember | PropertyAccessExpression | ElementAccessExpression): string | number | undefined;
        isValidPropertyAccess(node: PropertyAccessExpression | QualifiedName | ImportTypeNode, propertyName: string): boolean;
        /** Follow all aliases to get the original symbol. */
        getAliasedSymbol(symbol: Symbol): Symbol;
        getExportsOfModule(moduleSymbol: Symbol): Symbol[];
        getJsxIntrinsicTagNamesAt(location: Node): Symbol[];
        isOptionalParameter(node: ParameterDeclaration): boolean;
        getAmbientModules(): Symbol[];
        tryGetMemberInModuleExports(memberName: string, moduleSymbol: Symbol): Symbol | undefined;
        getApparentType(type: Type): Type;
        getBaseConstraintOfType(type: Type): Type | undefined;
        getDefaultFromTypeParameter(type: Type): Type | undefined;
        /**
         * Depending on the operation performed, it may be appropriate to throw away the checker
         * if the cancellation token is triggered. Typically, if it is used for error checking
         * and the operation is cancelled, then it should be discarded, otherwise it is safe to keep.
         */
        runWithCancellationToken<T>(token: CancellationToken, cb: (checker: TypeChecker) => T): T;
    }
    enum NodeBuilderFlags {
        None = 0,
        NoTruncation = 1,
        WriteArrayAsGenericType = 2,
        GenerateNamesForShadowedTypeParams = 4,
        UseStructuralFallback = 8,
        ForbidIndexedAccessSymbolReferences = 16,
        WriteTypeArgumentsOfSignature = 32,
        UseFullyQualifiedType = 64,
        UseOnlyExternalAliasing = 128,
        SuppressAnyReturnType = 256,
        WriteTypeParametersInQualifiedName = 512,
        MultilineObjectLiterals = 1024,
        WriteClassExpressionAsTypeLiteral = 2048,
        UseTypeOfFunction = 4096,
        OmitParameterModifiers = 8192,
        UseAliasDefinedOutsideCurrentScope = 16384,
        AllowThisInObjectLiteral = 32768,
        AllowQualifedNameInPlaceOfIdentifier = 65536,
        AllowAnonymousIdentifier = 131072,
        AllowEmptyUnionOrIntersection = 262144,
        AllowEmptyTuple = 524288,
        AllowUniqueESSymbolType = 1048576,
        AllowEmptyIndexInfoType = 2097152,
        AllowNodeModulesRelativePaths = 67108864,
        IgnoreErrors = 70221824,
        InObjectTypeLiteral = 4194304,
        InTypeAlias = 8388608,
        InInitialEntityName = 16777216,
        InReverseMappedType = 33554432
    }
    enum TypeFormatFlags {
        None = 0,
        NoTruncation = 1,
        WriteArrayAsGenericType = 2,
        UseStructuralFallback = 8,
        WriteTypeArgumentsOfSignature = 32,
        UseFullyQualifiedType = 64,
        SuppressAnyReturnType = 256,
        MultilineObjectLiterals = 1024,
        WriteClassExpressionAsTypeLiteral = 2048,
        UseTypeOfFunction = 4096,
        OmitParameterModifiers = 8192,
        UseAliasDefinedOutsideCurrentScope = 16384,
        AllowUniqueESSymbolType = 1048576,
        AddUndefined = 131072,
        WriteArrowStyleSignature = 262144,
        InArrayType = 524288,
        InElementType = 2097152,
        InFirstTypeArgument = 4194304,
        InTypeAlias = 8388608,
        /** @deprecated */ WriteOwnNameForAnyLike = 0,
        NodeBuilderFlagsMask = 9469291
    }
    enum SymbolFormatFlags {
        None = 0,
        WriteTypeParametersOrArguments = 1,
        UseOnlyExternalAliasing = 2,
        AllowAnyNodeKind = 4,
        UseAliasDefinedOutsideCurrentScope = 8,
    }
    enum TypePredicateKind {
        This = 0,
        Identifier = 1
    }
    interface TypePredicateBase {
        kind: TypePredicateKind;
        type: Type;
    }
    interface ThisTypePredicate extends TypePredicateBase {
        kind: TypePredicateKind.This;
    }
    interface IdentifierTypePredicate extends TypePredicateBase {
        kind: TypePredicateKind.Identifier;
        parameterName: string;
        parameterIndex: number;
    }
    type TypePredicate = IdentifierTypePredicate | ThisTypePredicate;
    enum SymbolFlags {
        None = 0,
        FunctionScopedVariable = 1,
        BlockScopedVariable = 2,
        Property = 4,
        EnumMember = 8,
        Function = 16,
        Class = 32,
        Interface = 64,
        ConstEnum = 128,
        RegularEnum = 256,
        ValueModule = 512,
        NamespaceModule = 1024,
        TypeLiteral = 2048,
        ObjectLiteral = 4096,
        Method = 8192,
        Constructor = 16384,
        GetAccessor = 32768,
        SetAccessor = 65536,
        Signature = 131072,
        TypeParameter = 262144,
        TypeAlias = 524288,
        ExportValue = 1048576,
        Alias = 2097152,
        Prototype = 4194304,
        ExportStar = 8388608,
        Optional = 16777216,
        Transient = 33554432,
        Assignment = 67108864,
        ModuleExports = 134217728,
        Enum = 384,
        Variable = 3,
        Value = 67220415,
        Type = 67897832,
        Namespace = 1920,
        Module = 1536,
        Accessor = 98304,
        FunctionScopedVariableExcludes = 67220414,
        BlockScopedVariableExcludes = 67220415,
        ParameterExcludes = 67220415,
        PropertyExcludes = 0,
        EnumMemberExcludes = 68008959,
        FunctionExcludes = 67219887,
        ClassExcludes = 68008383,
        InterfaceExcludes = 67897736,
        RegularEnumExcludes = 68008191,
        ConstEnumExcludes = 68008831,
        ValueModuleExcludes = 110735,
        NamespaceModuleExcludes = 0,
        MethodExcludes = 67212223,
        GetAccessorExcludes = 67154879,
        SetAccessorExcludes = 67187647,
        TypeParameterExcludes = 67635688,
        TypeAliasExcludes = 67897832,
        AliasExcludes = 2097152,
        ModuleMember = 2623475,
        ExportHasLocal = 944,
        BlockScoped = 418,
        PropertyOrAccessor = 98308,
        ClassMember = 106500,
    }
    interface Symbol {
        flags: SymbolFlags;
        escapedName: __String;
        declarations: Declaration[];
        valueDeclaration: Declaration;
        members?: SymbolTable;
        exports?: SymbolTable;
        globalExports?: SymbolTable;
    }
    enum InternalSymbolName {
        Call = "__call",
        Constructor = "__constructor",
        New = "__new",
        Index = "__index",
        ExportStar = "__export",
        Global = "__global",
        Missing = "__missing",
        Type = "__type",
        Object = "__object",
        JSXAttributes = "__jsxAttributes",
        Class = "__class",
        Function = "__function",
        Computed = "__computed",
        Resolving = "__resolving__",
        ExportEquals = "export=",
        Default = "default",
        This = "this"
    }
    /**
     * This represents a string whose leading underscore have been escaped by adding extra leading underscores.
     * The shape of this brand is rather unique compared to others we've used.
     * Instead of just an intersection of a string and an object, it is that union-ed
     * with an intersection of void and an object. This makes it wholly incompatible
     * with a normal string (which is good, it cannot be misused on assignment or on usage),
     * while still being comparable with a normal string via === (also good) and castable from a string.
     */
    type __String = (string & {
        __escapedIdentifier: void;
    }) | (void & {
        __escapedIdentifier: void;
    }) | InternalSymbolName;
    /** ReadonlyMap where keys are `__String`s. */
    interface ReadonlyUnderscoreEscapedMap<T> {
        get(key: __String): T | undefined;
        has(key: __String): boolean;
        forEach(action: (value: T, key: __String) => void): void;
        readonly size: number;
        keys(): Iterator<__String>;
        values(): Iterator<T>;
        entries(): Iterator<[__String, T]>;
    }
    /** Map where keys are `__String`s. */
    interface UnderscoreEscapedMap<T> extends ReadonlyUnderscoreEscapedMap<T> {
        set(key: __String, value: T): this;
        delete(key: __String): boolean;
        clear(): void;
    }
    /** SymbolTable based on ES6 Map interface. */
    type SymbolTable = UnderscoreEscapedMap<Symbol>;
    enum TypeFlags {
        Any = 1,
        Unknown = 2,
        String = 4,
        Number = 8,
        Boolean = 16,
        Enum = 32,
        BigInt = 64,
        StringLiteral = 128,
        NumberLiteral = 256,
        BooleanLiteral = 512,
        EnumLiteral = 1024,
        BigIntLiteral = 2048,
        ESSymbol = 4096,
        UniqueESSymbol = 8192,
        Void = 16384,
        Undefined = 32768,
        Null = 65536,
        Never = 131072,
        TypeParameter = 262144,
        Object = 524288,
        Union = 1048576,
        Intersection = 2097152,
        Index = 4194304,
        IndexedAccess = 8388608,
        Conditional = 16777216,
        Substitution = 33554432,
        NonPrimitive = 67108864,
        Literal = 2944,
        Unit = 109440,
        StringOrNumberLiteral = 384,
        PossiblyFalsy = 117724,
        StringLike = 132,
        NumberLike = 296,
        BigIntLike = 2112,
        BooleanLike = 528,
        EnumLike = 1056,
        ESSymbolLike = 12288,
        VoidLike = 49152,
        UnionOrIntersection = 3145728,
        StructuredType = 3670016,
        TypeVariable = 8650752,
        InstantiableNonPrimitive = 58982400,
        InstantiablePrimitive = 4194304,
        Instantiable = 63176704,
        StructuredOrInstantiable = 66846720,
        Narrowable = 133970943,
        NotUnionOrUnit = 67637251,
    }
    type DestructuringPattern = BindingPattern | ObjectLiteralExpression | ArrayLiteralExpression;
    interface Type {
        flags: TypeFlags;
        symbol: Symbol;
        pattern?: DestructuringPattern;
        aliasSymbol?: Symbol;
        aliasTypeArguments?: ReadonlyArray<Type>;
    }
    interface LiteralType extends Type {
        value: string | number | PseudoBigInt;
        freshType: LiteralType;
        regularType: LiteralType;
    }
    interface UniqueESSymbolType extends Type {
        symbol: Symbol;
        escapedName: __String;
    }
    interface StringLiteralType extends LiteralType {
        value: string;
    }
    interface NumberLiteralType extends LiteralType {
        value: number;
    }
    interface BigIntLiteralType extends LiteralType {
        value: PseudoBigInt;
    }
    interface EnumType extends Type {
    }
    enum ObjectFlags {
        Class = 1,
        Interface = 2,
        Reference = 4,
        Tuple = 8,
        Anonymous = 16,
        Mapped = 32,
        Instantiated = 64,
        ObjectLiteral = 128,
        EvolvingArray = 256,
        ObjectLiteralPatternWithComputedProperties = 512,
        ContainsSpread = 1024,
        ReverseMapped = 2048,
        JsxAttributes = 4096,
        MarkerType = 8192,
        JSLiteral = 16384,
        FreshLiteral = 32768,
        ClassOrInterface = 3,
    }
    interface ObjectType extends Type {
        objectFlags: ObjectFlags;
    }
    /** Class and interface types (ObjectFlags.Class and ObjectFlags.Interface). */
    interface InterfaceType extends ObjectType {
        typeParameters: TypeParameter[] | undefined;
        outerTypeParameters: TypeParameter[] | undefined;
        localTypeParameters: TypeParameter[] | undefined;
        thisType: TypeParameter | undefined;
    }
    type BaseType = ObjectType | IntersectionType;
    interface InterfaceTypeWithDeclaredMembers extends InterfaceType {
        declaredProperties: Symbol[];
        declaredCallSignatures: Signature[];
        declaredConstructSignatures: Signature[];
        declaredStringIndexInfo?: IndexInfo;
        declaredNumberIndexInfo?: IndexInfo;
    }
    /**
     * Type references (ObjectFlags.Reference). When a class or interface has type parameters or
     * a "this" type, references to the class or interface are made using type references. The
     * typeArguments property specifies the types to substitute for the type parameters of the
     * class or interface and optionally includes an extra element that specifies the type to
     * substitute for "this" in the resulting instantiation. When no extra argument is present,
     * the type reference itself is substituted for "this". The typeArguments property is undefined
     * if the class or interface has no type parameters and the reference isn't specifying an
     * explicit "this" argument.
     */
    interface TypeReference extends ObjectType {
        target: GenericType;
        typeArguments?: ReadonlyArray<Type>;
    }
    interface GenericType extends InterfaceType, TypeReference {
    }
    interface TupleType extends GenericType {
        minLength: number;
        hasRestElement: boolean;
        readonly: boolean;
        associatedNames?: __String[];
    }
    interface TupleTypeReference extends TypeReference {
        target: TupleType;
    }
    interface UnionOrIntersectionType extends Type {
        types: Type[];
    }
    interface UnionType extends UnionOrIntersectionType {
    }
    interface IntersectionType extends UnionOrIntersectionType {
    }
    type StructuredType = ObjectType | UnionType | IntersectionType;
    interface EvolvingArrayType extends ObjectType {
        elementType: Type;
        finalArrayType?: Type;
    }
    interface InstantiableType extends Type {
    }
    interface TypeParameter extends InstantiableType {
    }
    interface IndexedAccessType extends InstantiableType {
        objectType: Type;
        indexType: Type;
        constraint?: Type;
        simplifiedForReading?: Type;
        simplifiedForWriting?: Type;
    }
    type TypeVariable = TypeParameter | IndexedAccessType;
    interface IndexType extends InstantiableType {
        type: InstantiableType | UnionOrIntersectionType;
    }
    interface ConditionalRoot {
        node: ConditionalTypeNode;
        checkType: Type;
        extendsType: Type;
        trueType: Type;
        falseType: Type;
        isDistributive: boolean;
        inferTypeParameters?: TypeParameter[];
        outerTypeParameters?: TypeParameter[];
        instantiations?: Map<Type>;
        aliasSymbol?: Symbol;
        aliasTypeArguments?: Type[];
    }
    interface ConditionalType extends InstantiableType {
        root: ConditionalRoot;
        checkType: Type;
        extendsType: Type;
        resolvedTrueType: Type;
        resolvedFalseType: Type;
    }
    interface SubstitutionType extends InstantiableType {
        typeVariable: TypeVariable;
        substitute: Type;
    }
    enum SignatureKind {
        Call = 0,
        Construct = 1
    }
    interface Signature {
        declaration?: SignatureDeclaration | JSDocSignature;
        typeParameters?: ReadonlyArray<TypeParameter>;
        parameters: ReadonlyArray<Symbol>;
    }
    enum IndexKind {
        String = 0,
        Number = 1
    }
    interface IndexInfo {
        type: Type;
        isReadonly: boolean;
        declaration?: IndexSignatureDeclaration;
    }
    enum InferencePriority {
        NakedTypeVariable = 1,
        HomomorphicMappedType = 2,
        PartialHomomorphicMappedType = 4,
        MappedTypeConstraint = 8,
        ReturnType = 16,
        LiteralKeyof = 32,
        NoConstraints = 64,
        AlwaysStrict = 128,
        PriorityImpliesCombination = 56
    }
    /** @deprecated Use FileExtensionInfo instead. */
    type JsFileExtensionInfo = FileExtensionInfo;
    interface FileExtensionInfo {
        extension: string;
        isMixedContent: boolean;
        scriptKind?: ScriptKind;
    }
    interface DiagnosticMessage {
        key: string;
        category: DiagnosticCategory;
        code: number;
        message: string;
        reportsUnnecessary?: {};
    }
    /**
     * A linked list of formatted diagnostic messages to be used as part of a multiline message.
     * It is built from the bottom up, leaving the head to be the "main" diagnostic.
     * While it seems that DiagnosticMessageChain is structurally similar to DiagnosticMessage,
     * the difference is that messages are all preformatted in DMC.
     */
    interface DiagnosticMessageChain {
        messageText: string;
        category: DiagnosticCategory;
        code: number;
        next?: DiagnosticMessageChain;
    }
    interface Diagnostic extends DiagnosticRelatedInformation {
        /** May store more in future. For now, this will simply be `true` to indicate when a diagnostic is an unused-identifier diagnostic. */
        reportsUnnecessary?: {};
        source?: string;
        relatedInformation?: DiagnosticRelatedInformation[];
    }
    interface DiagnosticRelatedInformation {
        category: DiagnosticCategory;
        code: number;
        file: SourceFile | undefined;
        start: number | undefined;
        length: number | undefined;
        messageText: string | DiagnosticMessageChain;
    }
    interface DiagnosticWithLocation extends Diagnostic {
        file: SourceFile;
        start: number;
        length: number;
    }
    enum DiagnosticCategory {
        Warning = 0,
        Error = 1,
        Suggestion = 2,
        Message = 3
    }
    enum ModuleResolutionKind {
        Classic = 1,
        NodeJs = 2
    }
    interface PluginImport {
        name: string;
    }
    interface ProjectReference {
        /** A normalized path on disk */
        path: string;
        /** The path as the user originally wrote it */
        originalPath?: string;
        /** True if the output of this reference should be prepended to the output of this project. Only valid for --outFile compilations */
        prepend?: boolean;
        /** True if it is intended that this reference form a circularity */
        circular?: boolean;
    }
    type CompilerOptionsValue = string | number | boolean | (string | number)[] | string[] | MapLike<string[]> | PluginImport[] | ProjectReference[] | null | undefined;
    interface CompilerOptions {
        allowJs?: boolean;
        allowSyntheticDefaultImports?: boolean;
        allowUmdGlobalAccess?: boolean;
        allowUnreachableCode?: boolean;
        allowUnusedLabels?: boolean;
        alwaysStrict?: boolean;
        baseUrl?: string;
        charset?: string;
        checkJs?: boolean;
        declaration?: boolean;
        declarationMap?: boolean;
        emitDeclarationOnly?: boolean;
        declarationDir?: string;
        disableSizeLimit?: boolean;
        downlevelIteration?: boolean;
        emitBOM?: boolean;
        emitDecoratorMetadata?: boolean;
        experimentalDecorators?: boolean;
        forceConsistentCasingInFileNames?: boolean;
        importHelpers?: boolean;
        inlineSourceMap?: boolean;
        inlineSources?: boolean;
        isolatedModules?: boolean;
        jsx?: JsxEmit;
        keyofStringsOnly?: boolean;
        lib?: string[];
        locale?: string;
        mapRoot?: string;
        maxNodeModuleJsDepth?: number;
        module?: ModuleKind;
        moduleResolution?: ModuleResolutionKind;
        newLine?: NewLineKind;
        noEmit?: boolean;
        noEmitHelpers?: boolean;
        noEmitOnError?: boolean;
        noErrorTruncation?: boolean;
        noFallthroughCasesInSwitch?: boolean;
        noImplicitAny?: boolean;
        noImplicitReturns?: boolean;
        noImplicitThis?: boolean;
        noStrictGenericChecks?: boolean;
        noUnusedLocals?: boolean;
        noUnusedParameters?: boolean;
        noImplicitUseStrict?: boolean;
        noLib?: boolean;
        noResolve?: boolean;
        out?: string;
        outDir?: string;
        outFile?: string;
        paths?: MapLike<string[]>;
        preserveConstEnums?: boolean;
        preserveSymlinks?: boolean;
        project?: string;
        reactNamespace?: string;
        jsxFactory?: string;
        composite?: boolean;
        incremental?: boolean;
        tsBuildInfoFile?: string;
        removeComments?: boolean;
        rootDir?: string;
        rootDirs?: string[];
        skipLibCheck?: boolean;
        skipDefaultLibCheck?: boolean;
        sourceMap?: boolean;
        sourceRoot?: string;
        strict?: boolean;
        strictFunctionTypes?: boolean;
        strictBindCallApply?: boolean;
        strictNullChecks?: boolean;
        strictPropertyInitialization?: boolean;
        stripInternal?: boolean;
        suppressExcessPropertyErrors?: boolean;
        suppressImplicitAnyIndexErrors?: boolean;
        target?: ScriptTarget;
        traceResolution?: boolean;
        resolveJsonModule?: boolean;
        types?: string[];
        /** Paths used to compute primary types search locations */
        typeRoots?: string[];
        esModuleInterop?: boolean;
        [option: string]: CompilerOptionsValue | TsConfigSourceFile | undefined;
    }
    interface TypeAcquisition {
        enableAutoDiscovery?: boolean;
        enable?: boolean;
        include?: string[];
        exclude?: string[];
        [option: string]: string[] | boolean | undefined;
    }
    enum ModuleKind {
        None = 0,
        CommonJS = 1,
        AMD = 2,
        UMD = 3,
        System = 4,
        ES2015 = 5,
        ESNext = 6
    }
    enum JsxEmit {
        None = 0,
        Preserve = 1,
        React = 2,
        ReactNative = 3
    }
    enum NewLineKind {
        CarriageReturnLineFeed = 0,
        LineFeed = 1
    }
    interface LineAndCharacter {
        /** 0-based. */
        line: number;
        character: number;
    }
    enum ScriptKind {
        Unknown = 0,
        JS = 1,
        JSX = 2,
        TS = 3,
        TSX = 4,
        External = 5,
        JSON = 6,
        /**
         * Used on extensions that doesn't define the ScriptKind but the content defines it.
         * Deferred extensions are going to be included in all project contexts.
         */
        Deferred = 7
    }
    enum ScriptTarget {
        ES3 = 0,
        ES5 = 1,
        ES2015 = 2,
        ES2016 = 3,
        ES2017 = 4,
        ES2018 = 5,
        ES2019 = 6,
        ES2020 = 7,
        ESNext = 8,
        JSON = 100,
        Latest = 8
    }
    enum LanguageVariant {
        Standard = 0,
        JSX = 1
    }
    /** Either a parsed command line or a parsed tsconfig.json */
    interface ParsedCommandLine {
        options: CompilerOptions;
        typeAcquisition?: TypeAcquisition;
        fileNames: string[];
        projectReferences?: ReadonlyArray<ProjectReference>;
        raw?: any;
        errors: Diagnostic[];
        wildcardDirectories?: MapLike<WatchDirectoryFlags>;
        compileOnSave?: boolean;
    }
    enum WatchDirectoryFlags {
        None = 0,
        Recursive = 1
    }
    interface ExpandResult {
        fileNames: string[];
        wildcardDirectories: MapLike<WatchDirectoryFlags>;
    }
    interface CreateProgramOptions {
        rootNames: ReadonlyArray<string>;
        options: CompilerOptions;
        projectReferences?: ReadonlyArray<ProjectReference>;
        host?: CompilerHost;
        oldProgram?: Program;
        configFileParsingDiagnostics?: ReadonlyArray<Diagnostic>;
    }
    interface ModuleResolutionHost {
        fileExists(fileName: string): boolean;
        readFile(fileName: string): string | undefined;
        trace?(s: string): void;
        directoryExists?(directoryName: string): boolean;
        /**
         * Resolve a symbolic link.
         * @see https://nodejs.org/api/fs.html#fs_fs_realpathsync_path_options
         */
        realpath?(path: string): string;
        getCurrentDirectory?(): string;
        getDirectories?(path: string): string[];
    }
    /**
     * Represents the result of module resolution.
     * Module resolution will pick up tsx/jsx/js files even if '--jsx' and '--allowJs' are turned off.
     * The Program will then filter results based on these flags.
     *
     * Prefer to return a `ResolvedModuleFull` so that the file type does not have to be inferred.
     */
    interface ResolvedModule {
        /** Path of the file the module was resolved to. */
        resolvedFileName: string;
        /** True if `resolvedFileName` comes from `node_modules`. */
        isExternalLibraryImport?: boolean;
    }
    /**
     * ResolvedModule with an explicitly provided `extension` property.
     * Prefer this over `ResolvedModule`.
     * If changing this, remember to change `moduleResolutionIsEqualTo`.
     */
    interface ResolvedModuleFull extends ResolvedModule {
        /**
         * Extension of resolvedFileName. This must match what's at the end of resolvedFileName.
         * This is optional for backwards-compatibility, but will be added if not provided.
         */
        extension: Extension;
        packageId?: PackageId;
    }
    /**
     * Unique identifier with a package name and version.
     * If changing this, remember to change `packageIdIsEqual`.
     */
    interface PackageId {
        /**
         * Name of the package.
         * Should not include `@types`.
         * If accessing a non-index file, this should include its name e.g. "foo/bar".
         */
        name: string;
        /**
         * Name of a submodule within this package.
         * May be "".
         */
        subModuleName: string;
        /** Version of the package, e.g. "1.2.3" */
        version: string;
    }
    enum Extension {
        Ts = ".ts",
        Tsx = ".tsx",
        Dts = ".d.ts",
        Js = ".js",
        Jsx = ".jsx",
        Json = ".json",
        TsBuildInfo = ".tsbuildinfo"
    }
    interface ResolvedModuleWithFailedLookupLocations {
        readonly resolvedModule: ResolvedModuleFull | undefined;
    }
    interface ResolvedTypeReferenceDirective {
        primary: boolean;
        resolvedFileName: string | undefined;
        packageId?: PackageId;
        /** True if `resolvedFileName` comes from `node_modules`. */
        isExternalLibraryImport?: boolean;
    }
    interface ResolvedTypeReferenceDirectiveWithFailedLookupLocations {
        readonly resolvedTypeReferenceDirective: ResolvedTypeReferenceDirective | undefined;
        readonly failedLookupLocations: ReadonlyArray<string>;
    }
    interface CompilerHost extends ModuleResolutionHost {
        getSourceFile(fileName: string, languageVersion: ScriptTarget, onError?: (message: string) => void, shouldCreateNewSourceFile?: boolean): SourceFile | undefined;
        getSourceFileByPath?(fileName: string, path: Path, languageVersion: ScriptTarget, onError?: (message: string) => void, shouldCreateNewSourceFile?: boolean): SourceFile | undefined;
        getCancellationToken?(): CancellationToken;
        getDefaultLibFileName(options: CompilerOptions): string;
        getDefaultLibLocation?(): string;
        writeFile: WriteFileCallback;
        getCurrentDirectory(): string;
        getCanonicalFileName(fileName: string): string;
        useCaseSensitiveFileNames(): boolean;
        getNewLine(): string;
        readDirectory?(rootDir: string, extensions: ReadonlyArray<string>, excludes: ReadonlyArray<string> | undefined, includes: ReadonlyArray<string>, depth?: number): string[];
        resolveModuleNames?(moduleNames: string[], containingFile: string, reusedNames?: string[], redirectedReference?: ResolvedProjectReference): (ResolvedModule | undefined)[];
        /**
         * This method is a companion for 'resolveModuleNames' and is used to resolve 'types' references to actual type declaration files
         */
        resolveTypeReferenceDirectives?(typeReferenceDirectiveNames: string[], containingFile: string, redirectedReference?: ResolvedProjectReference): (ResolvedTypeReferenceDirective | undefined)[];
        getEnvironmentVariable?(name: string): string | undefined;
        createHash?(data: string): string;
        getParsedCommandLine?(fileName: string): ParsedCommandLine | undefined;
    }
    interface SourceMapRange extends TextRange {
        source?: SourceMapSource;
    }
    interface SourceMapSource {
        fileName: string;
        text: string;
        skipTrivia?: (pos: number) => number;
    }
    enum EmitFlags {
        None = 0,
        SingleLine = 1,
        AdviseOnEmitNode = 2,
        NoSubstitution = 4,
        CapturesThis = 8,
        NoLeadingSourceMap = 16,
        NoTrailingSourceMap = 32,
        NoSourceMap = 48,
        NoNestedSourceMaps = 64,
        NoTokenLeadingSourceMaps = 128,
        NoTokenTrailingSourceMaps = 256,
        NoTokenSourceMaps = 384,
        NoLeadingComments = 512,
        NoTrailingComments = 1024,
        NoComments = 1536,
        NoNestedComments = 2048,
        HelperName = 4096,
        ExportName = 8192,
        LocalName = 16384,
        InternalName = 32768,
        Indented = 65536,
        NoIndentation = 131072,
        AsyncFunctionBody = 262144,
        ReuseTempVariableScope = 524288,
        CustomPrologue = 1048576,
        NoHoisting = 2097152,
        HasEndOfDeclarationMarker = 4194304,
        Iterator = 8388608,
        NoAsciiEscaping = 16777216,
    }
    interface EmitHelper {
        readonly name: string;
        readonly scoped: boolean;
        readonly text: string | ((node: EmitHelperUniqueNameCallback) => string);
        readonly priority?: number;
    }
    interface UnscopedEmitHelper extends EmitHelper {
        readonly scoped: false;
        readonly text: string;
    }
    type EmitHelperUniqueNameCallback = (name: string) => string;
    enum EmitHint {
        SourceFile = 0,
        Expression = 1,
        IdentifierName = 2,
        MappedTypeParameter = 3,
        Unspecified = 4,
        EmbeddedStatement = 5
    }
    interface TransformationContext {
        /** Gets the compiler options supplied to the transformer. */
        getCompilerOptions(): CompilerOptions;
        /** Starts a new lexical environment. */
        startLexicalEnvironment(): void;
        /** Suspends the current lexical environment, usually after visiting a parameter list. */
        suspendLexicalEnvironment(): void;
        /** Resumes a suspended lexical environment, usually before visiting a function body. */
        resumeLexicalEnvironment(): void;
        /** Ends a lexical environment, returning any declarations. */
        endLexicalEnvironment(): Statement[] | undefined;
        /** Hoists a function declaration to the containing scope. */
        hoistFunctionDeclaration(node: FunctionDeclaration): void;
        /** Hoists a variable declaration to the containing scope. */
        hoistVariableDeclaration(node: Identifier): void;
        /** Records a request for a non-scoped emit helper in the current context. */
        requestEmitHelper(helper: EmitHelper): void;
        /** Gets and resets the requested non-scoped emit helpers. */
        readEmitHelpers(): EmitHelper[] | undefined;
        /** Enables expression substitutions in the pretty printer for the provided SyntaxKind. */
        enableSubstitution(kind: SyntaxKind): void;
        /** Determines whether expression substitutions are enabled for the provided node. */
        isSubstitutionEnabled(node: Node): boolean;
        /**
         * Hook used by transformers to substitute expressions just before they
         * are emitted by the pretty printer.
         *
         * NOTE: Transformation hooks should only be modified during `Transformer` initialization,
         * before returning the `NodeTransformer` callback.
         */
        onSubstituteNode: (hint: EmitHint, node: Node) => Node;
        /**
         * Enables before/after emit notifications in the pretty printer for the provided
         * SyntaxKind.
         */
        enableEmitNotification(kind: SyntaxKind): void;
        /**
         * Determines whether before/after emit notifications should be raised in the pretty
         * printer when it emits a node.
         */
        isEmitNotificationEnabled(node: Node): boolean;
        /**
         * Hook used to allow transformers to capture state before or after
         * the printer emits a node.
         *
         * NOTE: Transformation hooks should only be modified during `Transformer` initialization,
         * before returning the `NodeTransformer` callback.
         */
        onEmitNode: (hint: EmitHint, node: Node, emitCallback: (hint: EmitHint, node: Node) => void) => void;
    }
    interface TransformationResult<T extends Node> {
        /** Gets the transformed source files. */
        transformed: T[];
        /** Gets diagnostics for the transformation. */
        diagnostics?: DiagnosticWithLocation[];
        /**
         * Gets a substitute for a node, if one is available; otherwise, returns the original node.
         *
         * @param hint A hint as to the intended usage of the node.
         * @param node The node to substitute.
         */
        substituteNode(hint: EmitHint, node: Node): Node;
        /**
         * Emits a node with possible notification.
         *
         * @param hint A hint as to the intended usage of the node.
         * @param node The node to emit.
         * @param emitCallback A callback used to emit the node.
         */
        emitNodeWithNotification(hint: EmitHint, node: Node, emitCallback: (hint: EmitHint, node: Node) => void): void;
        /**
         * Clean up EmitNode entries on any parse-tree nodes.
         */
        dispose(): void;
    }
    /**
     * A function that is used to initialize and return a `Transformer` callback, which in turn
     * will be used to transform one or more nodes.
     */
    type TransformerFactory<T extends Node> = (context: TransformationContext) => Transformer<T>;
    /**
     * A function that transforms a node.
     */
    type Transformer<T extends Node> = (node: T) => T;
    /**
     * A function that accepts and possibly transforms a node.
     */
    type Visitor = (node: Node) => VisitResult<Node>;
    type VisitResult<T extends Node> = T | T[] | undefined;
    interface Printer {
        /**
         * Print a node and its subtree as-is, without any emit transformations.
         * @param hint A value indicating the purpose of a node. This is primarily used to
         * distinguish between an `Identifier` used in an expression position, versus an
         * `Identifier` used as an `IdentifierName` as part of a declaration. For most nodes you
         * should just pass `Unspecified`.
         * @param node The node to print. The node and its subtree are printed as-is, without any
         * emit transformations.
         * @param sourceFile A source file that provides context for the node. The source text of
         * the file is used to emit the original source content for literals and identifiers, while
         * the identifiers of the source file are used when generating unique names to avoid
         * collisions.
         */
        printNode(hint: EmitHint, node: Node, sourceFile: SourceFile): string;
        /**
         * Prints a list of nodes using the given format flags
         */
        printList<T extends Node>(format: ListFormat, list: NodeArray<T>, sourceFile: SourceFile): string;
        /**
         * Prints a source file as-is, without any emit transformations.
         */
        printFile(sourceFile: SourceFile): string;
        /**
         * Prints a bundle of source files as-is, without any emit transformations.
         */
        printBundle(bundle: Bundle): string;
    }
    interface PrintHandlers {
        /**
         * A hook used by the Printer when generating unique names to avoid collisions with
         * globally defined names that exist outside of the current source file.
         */
        hasGlobalName?(name: string): boolean;
        /**
         * A hook used by the Printer to provide notifications prior to emitting a node. A
         * compatible implementation **must** invoke `emitCallback` with the provided `hint` and
         * `node` values.
         * @param hint A hint indicating the intended purpose of the node.
         * @param node The node to emit.
         * @param emitCallback A callback that, when invoked, will emit the node.
         * @example
         * ```ts
         * var printer = createPrinter(printerOptions, {
         *   onEmitNode(hint, node, emitCallback) {
         *     // set up or track state prior to emitting the node...
         *     emitCallback(hint, node);
         *     // restore state after emitting the node...
         *   }
         * });
         * ```
         */
        onEmitNode?(hint: EmitHint, node: Node | undefined, emitCallback: (hint: EmitHint, node: Node | undefined) => void): void;
        /**
         * A hook used by the Printer to perform just-in-time substitution of a node. This is
         * primarily used by node transformations that need to substitute one node for another,
         * such as replacing `myExportedVar` with `exports.myExportedVar`.
         * @param hint A hint indicating the intended purpose of the node.
         * @param node The node to emit.
         * @example
         * ```ts
         * var printer = createPrinter(printerOptions, {
         *   substituteNode(hint, node) {
         *     // perform substitution if necessary...
         *     return node;
         *   }
         * });
         * ```
         */
        substituteNode?(hint: EmitHint, node: Node): Node;
    }
    interface PrinterOptions {
        removeComments?: boolean;
        newLine?: NewLineKind;
        omitTrailingSemicolon?: boolean;
        noEmitHelpers?: boolean;
    }
    interface GetEffectiveTypeRootsHost {
        directoryExists?(directoryName: string): boolean;
        getCurrentDirectory?(): string;
    }
    interface TextSpan {
        start: number;
        length: number;
    }
    interface TextChangeRange {
        span: TextSpan;
        newLength: number;
    }
    interface SyntaxList extends Node {
        _children: Node[];
    }
    enum ListFormat {
        None = 0,
        SingleLine = 0,
        MultiLine = 1,
        PreserveLines = 2,
        LinesMask = 3,
        NotDelimited = 0,
        BarDelimited = 4,
        AmpersandDelimited = 8,
        CommaDelimited = 16,
        AsteriskDelimited = 32,
        DelimitersMask = 60,
        AllowTrailingComma = 64,
        Indented = 128,
        SpaceBetweenBraces = 256,
        SpaceBetweenSiblings = 512,
        Braces = 1024,
        Parenthesis = 2048,
        AngleBrackets = 4096,
        SquareBrackets = 8192,
        BracketsMask = 15360,
        OptionalIfUndefined = 16384,
        OptionalIfEmpty = 32768,
        Optional = 49152,
        PreferNewLine = 65536,
        NoTrailingNewLine = 131072,
        NoInterveningComments = 262144,
        NoSpaceIfEmpty = 524288,
        SingleElement = 1048576,
        Modifiers = 262656,
        HeritageClauses = 512,
        SingleLineTypeLiteralMembers = 768,
        MultiLineTypeLiteralMembers = 32897,
        TupleTypeElements = 528,
        UnionTypeConstituents = 516,
        IntersectionTypeConstituents = 520,
        ObjectBindingPatternElements = 525136,
        ArrayBindingPatternElements = 524880,
        ObjectLiteralExpressionProperties = 526226,
        ArrayLiteralExpressionElements = 8914,
        CommaListElements = 528,
        CallExpressionArguments = 2576,
        NewExpressionArguments = 18960,
        TemplateExpressionSpans = 262144,
        SingleLineBlockStatements = 768,
        MultiLineBlockStatements = 129,
        VariableDeclarationList = 528,
        SingleLineFunctionBodyStatements = 768,
        MultiLineFunctionBodyStatements = 1,
        ClassHeritageClauses = 0,
        ClassMembers = 129,
        InterfaceMembers = 129,
        EnumMembers = 145,
        CaseBlockClauses = 129,
        NamedImportsOrExportsElements = 525136,
        JsxElementOrFragmentChildren = 262144,
        JsxElementAttributes = 262656,
        CaseOrDefaultClauseStatements = 163969,
        HeritageClauseTypes = 528,
        SourceFileStatements = 131073,
        Decorators = 49153,
        TypeArguments = 53776,
        TypeParameters = 53776,
        Parameters = 2576,
        IndexSignatureParameters = 8848,
        JSDocComment = 33
    }
    interface UserPreferences {
        readonly disableSuggestions?: boolean;
        readonly quotePreference?: "auto" | "double" | "single";
        readonly includeCompletionsForModuleExports?: boolean;
        readonly includeCompletionsWithInsertText?: boolean;
        readonly importModuleSpecifierPreference?: "relative" | "non-relative";
        /** Determines whether we import `foo/index.ts` as "foo", "foo/index", or "foo/index.js" */
        readonly importModuleSpecifierEnding?: "minimal" | "index" | "js";
        readonly allowTextChangesInNewFiles?: boolean;
        readonly providePrefixAndSuffixTextForRename?: boolean;
    }
    /** Represents a bigint literal value without requiring bigint support */
    interface PseudoBigInt {
        negative: boolean;
        base10Value: string;
    }
}
declare function setTimeout(handler: (...args: any[]) => void, timeout: number): any;
declare function clearTimeout(handle: any): void;
declare namespace ts {
    enum FileWatcherEventKind {
        Created = 0,
        Changed = 1,
        Deleted = 2
    }
    type FileWatcherCallback = (fileName: string, eventKind: FileWatcherEventKind) => void;
    type DirectoryWatcherCallback = (fileName: string) => void;
    interface System {
        args: string[];
        newLine: string;
        useCaseSensitiveFileNames: boolean;
        write(s: string): void;
        writeOutputIsTTY?(): boolean;
        readFile(path: string, encoding?: string): string | undefined;
        getFileSize?(path: string): number;
        writeFile(path: string, data: string, writeByteOrderMark?: boolean): void;
        /**
         * @pollingInterval - this parameter is used in polling-based watchers and ignored in watchers that
         * use native OS file watching
         */
        watchFile?(path: string, callback: FileWatcherCallback, pollingInterval?: number): FileWatcher;
        watchDirectory?(path: string, callback: DirectoryWatcherCallback, recursive?: boolean): FileWatcher;
        resolvePath(path: string): string;
        fileExists(path: string): boolean;
        directoryExists(path: string): boolean;
        createDirectory(path: string): void;
        getExecutingFilePath(): string;
        getCurrentDirectory(): string;
        getDirectories(path: string): string[];
        readDirectory(path: string, extensions?: ReadonlyArray<string>, exclude?: ReadonlyArray<string>, include?: ReadonlyArray<string>, depth?: number): string[];
        getModifiedTime?(path: string): Date | undefined;
        setModifiedTime?(path: string, time: Date): void;
        deleteFile?(path: string): void;
        /**
         * A good implementation is node.js' `crypto.createHash`. (https://nodejs.org/api/crypto.html#crypto_crypto_createhash_algorithm)
         */
        createHash?(data: string): string;
        /** This must be cryptographically secure. Only implement this method using `crypto.createHash("sha256")`. */
        createSHA256Hash?(data: string): string;
        getMemoryUsage?(): number;
        exit(exitCode?: number): void;
        realpath?(path: string): string;
        setTimeout?(callback: (...args: any[]) => void, ms: number, ...args: any[]): any;
        clearTimeout?(timeoutId: any): void;
        clearScreen?(): void;
        base64decode?(input: string): string;
        base64encode?(input: string): string;
    }
    interface FileWatcher {
        close(): void;
    }
    function getNodeMajorVersion(): number | undefined;
    let sys: System;
}
declare namespace ts {
    type ErrorCallback = (message: DiagnosticMessage, length: number) => void;
    interface Scanner {
        getStartPos(): number;
        getToken(): SyntaxKind;
        getTextPos(): number;
        getTokenPos(): number;
        getTokenText(): string;
        getTokenValue(): string;
        hasExtendedUnicodeEscape(): boolean;
        hasPrecedingLineBreak(): boolean;
        isIdentifier(): boolean;
        isReservedWord(): boolean;
        isUnterminated(): boolean;
        reScanGreaterToken(): SyntaxKind;
        reScanSlashToken(): SyntaxKind;
        reScanTemplateToken(): SyntaxKind;
        scanJsxIdentifier(): SyntaxKind;
        scanJsxAttributeValue(): SyntaxKind;
        reScanJsxToken(): JsxTokenSyntaxKind;
        reScanLessThanToken(): SyntaxKind;
        scanJsxToken(): JsxTokenSyntaxKind;
        scanJsDocToken(): JSDocSyntaxKind;
        scan(): SyntaxKind;
        getText(): string;
        setText(text: string | undefined, start?: number, length?: number): void;
        setOnError(onError: ErrorCallback | undefined): void;
        setScriptTarget(scriptTarget: ScriptTarget): void;
        setLanguageVariant(variant: LanguageVariant): void;
        setTextPos(textPos: number): void;
        lookAhead<T>(callback: () => T): T;
        scanRange<T>(start: number, length: number, callback: () => T): T;
        tryScan<T>(callback: () => T): T;
    }
    function tokenToString(t: SyntaxKind): string | undefined;
    function getPositionOfLineAndCharacter(sourceFile: SourceFileLike, line: number, character: number): number;
    function getLineAndCharacterOfPosition(sourceFile: SourceFileLike, position: number): LineAndCharacter;
    function isWhiteSpaceLike(ch: number): boolean;
    /** Does not include line breaks. For that, see isWhiteSpaceLike. */
    function isWhiteSpaceSingleLine(ch: number): boolean;
    function isLineBreak(ch: number): boolean;
    function couldStartTrivia(text: string, pos: number): boolean;
    function forEachLeadingCommentRange<U>(text: string, pos: number, cb: (pos: number, end: number, kind: CommentKind, hasTrailingNewLine: boolean) => U): U | undefined;
    function forEachLeadingCommentRange<T, U>(text: string, pos: number, cb: (pos: number, end: number, kind: CommentKind, hasTrailingNewLine: boolean, state: T) => U, state: T): U | undefined;
    function forEachTrailingCommentRange<U>(text: string, pos: number, cb: (pos: number, end: number, kind: CommentKind, hasTrailingNewLine: boolean) => U): U | undefined;
    function forEachTrailingCommentRange<T, U>(text: string, pos: number, cb: (pos: number, end: number, kind: CommentKind, hasTrailingNewLine: boolean, state: T) => U, state: T): U | undefined;
    function reduceEachLeadingCommentRange<T, U>(text: string, pos: number, cb: (pos: number, end: number, kind: CommentKind, hasTrailingNewLine: boolean, state: T, memo: U) => U, state: T, initial: U): U | undefined;
    function reduceEachTrailingCommentRange<T, U>(text: string, pos: number, cb: (pos: number, end: number, kind: CommentKind, hasTrailingNewLine: boolean, state: T, memo: U) => U, state: T, initial: U): U | undefined;
    function getLeadingCommentRanges(text: string, pos: number): CommentRange[] | undefined;
    function getTrailingCommentRanges(text: string, pos: number): CommentRange[] | undefined;
    /** Optionally, get the shebang */
    function getShebang(text: string): string | undefined;
    function isIdentifierStart(ch: number, languageVersion: ScriptTarget | undefined): boolean;
    function isIdentifierPart(ch: number, languageVersion: ScriptTarget | undefined): boolean;
    function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean, languageVariant?: LanguageVariant, textInitial?: string, onError?: ErrorCallback, start?: number, length?: number): Scanner;
}
declare namespace ts {
    function isExternalModuleNameRelative(moduleName: string): boolean;
    function sortAndDeduplicateDiagnostics<T extends Diagnostic>(diagnostics: ReadonlyArray<T>): SortedReadonlyArray<T>;
}
declare namespace ts {
    function getDefaultLibFileName(options: CompilerOptions): string;
    function textSpanEnd(span: TextSpan): number;
    function textSpanIsEmpty(span: TextSpan): boolean;
    function textSpanContainsPosition(span: TextSpan, position: number): boolean;
    function textSpanContainsTextSpan(span: TextSpan, other: TextSpan): boolean;
    function textSpanOverlapsWith(span: TextSpan, other: TextSpan): boolean;
    function textSpanOverlap(span1: TextSpan, span2: TextSpan): TextSpan | undefined;
    function textSpanIntersectsWithTextSpan(span: TextSpan, other: TextSpan): boolean;
    function textSpanIntersectsWith(span: TextSpan, start: number, length: number): boolean;
    function decodedTextSpanIntersectsWith(start1: number, length1: number, start2: number, length2: number): boolean;
    function textSpanIntersectsWithPosition(span: TextSpan, position: number): boolean;
    function textSpanIntersection(span1: TextSpan, span2: TextSpan): TextSpan | undefined;
    function createTextSpan(start: number, length: number): TextSpan;
    function createTextSpanFromBounds(start: number, end: number): TextSpan;
    function textChangeRangeNewSpan(range: TextChangeRange): TextSpan;
    function textChangeRangeIsUnchanged(range: TextChangeRange): boolean;
    function createTextChangeRange(span: TextSpan, newLength: number): TextChangeRange;
    let unchangedTextChangeRange: TextChangeRange;
    /**
     * Called to merge all the changes that occurred across several versions of a script snapshot
     * into a single change.  i.e. if a user keeps making successive edits to a script we will
     * have a text change from V1 to V2, V2 to V3, ..., Vn.
     *
     * This function will then merge those changes into a single change range valid between V1 and
     * Vn.
     */
    function collapseTextChangeRangesAcrossMultipleVersions(changes: ReadonlyArray<TextChangeRange>): TextChangeRange;
    function getTypeParameterOwner(d: Declaration): Declaration | undefined;
    type ParameterPropertyDeclaration = ParameterDeclaration & {
        parent: ConstructorDeclaration;
        name: Identifier;
    };
    function isParameterPropertyDeclaration(node: Node): node is ParameterPropertyDeclaration;
    function isEmptyBindingPattern(node: BindingName): node is BindingPattern;
    function isEmptyBindingElement(node: BindingElement): boolean;
    function walkUpBindingElementsAndPatterns(binding: BindingElement): VariableDeclaration | ParameterDeclaration;
    function getCombinedModifierFlags(node: Declaration): ModifierFlags;
    function getCombinedNodeFlags(node: Node): NodeFlags;
    /**
     * Checks to see if the locale is in the appropriate format,
     * and if it is, attempts to set the appropriate language.
     */
    function validateLocaleAndSetLanguage(locale: string, sys: {
        getExecutingFilePath(): string;
        resolvePath(path: string): string;
        fileExists(fileName: string): boolean;
        readFile(fileName: string): string | undefined;
    }, errors?: Push<Diagnostic>): void;
    function getOriginalNode(node: Node): Node;
    function getOriginalNode<T extends Node>(node: Node, nodeTest: (node: Node) => node is T): T;
    function getOriginalNode(node: Node | undefined): Node | undefined;
    function getOriginalNode<T extends Node>(node: Node | undefined, nodeTest: (node: Node | undefined) => node is T): T | undefined;
    /**
     * Gets a value indicating whether a node originated in the parse tree.
     *
     * @param node The node to test.
     */
    function isParseTreeNode(node: Node): boolean;
    /**
     * Gets the original parse tree node for a node.
     *
     * @param node The original node.
     * @returns The original parse tree node if found; otherwise, undefined.
     */
    function getParseTreeNode(node: Node): Node;
    /**
     * Gets the original parse tree node for a node.
     *
     * @param node The original node.
     * @param nodeTest A callback used to ensure the correct type of parse tree node is returned.
     * @returns The original parse tree node if found; otherwise, undefined.
     */
    function getParseTreeNode<T extends Node>(node: Node | undefined, nodeTest?: (node: Node) => node is T): T | undefined;
    /** Add an extra underscore to identifiers that start with two underscores to avoid issues with magic names like '__proto__' */
    function escapeLeadingUnderscores(identifier: string): __String;
    /**
     * Remove extra underscore from escaped identifier text content.
     *
     * @param identifier The escaped identifier text.
     * @returns The unescaped identifier text.
     */
    function unescapeLeadingUnderscores(identifier: __String): string;
    function idText(identifier: Identifier): string;
    function symbolName(symbol: Symbol): string;
    function getNameOfJSDocTypedef(declaration: JSDocTypedefTag): Identifier | undefined;
    function getNameOfDeclaration(declaration: Declaration | Expression): DeclarationName | undefined;
    /**
     * Gets the JSDoc parameter tags for the node if present.
     *
     * @remarks Returns any JSDoc param tag whose name matches the provided
     * parameter, whether a param tag on a containing function
     * expression, or a param tag on a variable declaration whose
     * initializer is the containing function. The tags closest to the
     * node are returned first, so in the previous example, the param
     * tag on the containing function expression would be first.
     *
     * For binding patterns, parameter tags are matched by position.
     */
    function getJSDocParameterTags(param: ParameterDeclaration): ReadonlyArray<JSDocParameterTag>;
    /**
     * Gets the JSDoc type parameter tags for the node if present.
     *
     * @remarks Returns any JSDoc template tag whose names match the provided
     * parameter, whether a template tag on a containing function
     * expression, or a template tag on a variable declaration whose
     * initializer is the containing function. The tags closest to the
     * node are returned first, so in the previous example, the template
     * tag on the containing function expression would be first.
     */
    function getJSDocTypeParameterTags(param: TypeParameterDeclaration): ReadonlyArray<JSDocTemplateTag>;
    /**
     * Return true if the node has JSDoc parameter tags.
     *
     * @remarks Includes parameter tags that are not directly on the node,
     * for example on a variable declaration whose initializer is a function expression.
     */
    function hasJSDocParameterTags(node: FunctionLikeDeclaration | SignatureDeclaration): boolean;
    /** Gets the JSDoc augments tag for the node if present */
    function getJSDocAugmentsTag(node: Node): JSDocAugmentsTag | undefined;
    /** Gets the JSDoc class tag for the node if present */
    function getJSDocClassTag(node: Node): JSDocClassTag | undefined;
    /** Gets the JSDoc enum tag for the node if present */
    function getJSDocEnumTag(node: Node): JSDocEnumTag | undefined;
    /** Gets the JSDoc this tag for the node if present */
    function getJSDocThisTag(node: Node): JSDocThisTag | undefined;
    /** Gets the JSDoc return tag for the node if present */
    function getJSDocReturnTag(node: Node): JSDocReturnTag | undefined;
    /** Gets the JSDoc template tag for the node if present */
    function getJSDocTemplateTag(node: Node): JSDocTemplateTag | undefined;
    /** Gets the JSDoc type tag for the node if present and valid */
    function getJSDocTypeTag(node: Node): JSDocTypeTag | undefined;
    /**
     * Gets the type node for the node if provided via JSDoc.
     *
     * @remarks The search includes any JSDoc param tag that relates
     * to the provided parameter, for example a type tag on the
     * parameter itself, or a param tag on a containing function
     * expression, or a param tag on a variable declaration whose
     * initializer is the containing function. The tags closest to the
     * node are examined first, so in the previous example, the type
     * tag directly on the node would be returned.
     */
    function getJSDocType(node: Node): TypeNode | undefined;
    /**
     * Gets the return type node for the node if provided via JSDoc return tag or type tag.
     *
     * @remarks `getJSDocReturnTag` just gets the whole JSDoc tag. This function
     * gets the type from inside the braces, after the fat arrow, etc.
     */
    function getJSDocReturnType(node: Node): TypeNode | undefined;
    /** Get all JSDoc tags related to a node, including those on parent nodes. */
    function getJSDocTags(node: Node): ReadonlyArray<JSDocTag>;
    /** Gets all JSDoc tags of a specified kind, or undefined if not present. */
    function getAllJSDocTagsOfKind(node: Node, kind: SyntaxKind): ReadonlyArray<JSDocTag>;
    /**
     * Gets the effective type parameters. If the node was parsed in a
     * JavaScript file, gets the type parameters from the `@template` tag from JSDoc.
     */
    function getEffectiveTypeParameterDeclarations(node: DeclarationWithTypeParameters): ReadonlyArray<TypeParameterDeclaration>;
    function getEffectiveConstraintOfTypeParameter(node: TypeParameterDeclaration): TypeNode | undefined;
}
declare namespace ts {
    function isNumericLiteral(node: Node): node is NumericLiteral;
    function isBigIntLiteral(node: Node): node is BigIntLiteral;
    function isStringLiteral(node: Node): node is StringLiteral;
    function isJsxText(node: Node): node is JsxText;
    function isRegularExpressionLiteral(node: Node): node is RegularExpressionLiteral;
    function isNoSubstitutionTemplateLiteral(node: Node): node is NoSubstitutionTemplateLiteral;
    function isTemplateHead(node: Node): node is TemplateHead;
    function isTemplateMiddle(node: Node): node is TemplateMiddle;
    function isTemplateTail(node: Node): node is TemplateTail;
    function isIdentifier(node: Node): node is Identifier;
    function isQualifiedName(node: Node): node is QualifiedName;
    function isComputedPropertyName(node: Node): node is ComputedPropertyName;
    function isTypeParameterDeclaration(node: Node): node is TypeParameterDeclaration;
    function isParameter(node: Node): node is ParameterDeclaration;
    function isDecorator(node: Node): node is Decorator;
    function isPropertySignature(node: Node): node is PropertySignature;
    function isPropertyDeclaration(node: Node): node is PropertyDeclaration;
    function isMethodSignature(node: Node): node is MethodSignature;
    function isMethodDeclaration(node: Node): node is MethodDeclaration;
    function isConstructorDeclaration(node: Node): node is ConstructorDeclaration;
    function isGetAccessorDeclaration(node: Node): node is GetAccessorDeclaration;
    function isSetAccessorDeclaration(node: Node): node is SetAccessorDeclaration;
    function isCallSignatureDeclaration(node: Node): node is CallSignatureDeclaration;
    function isConstructSignatureDeclaration(node: Node): node is ConstructSignatureDeclaration;
    function isIndexSignatureDeclaration(node: Node): node is IndexSignatureDeclaration;
    function isTypePredicateNode(node: Node): node is TypePredicateNode;
    function isTypeReferenceNode(node: Node): node is TypeReferenceNode;
    function isFunctionTypeNode(node: Node): node is FunctionTypeNode;
    function isConstructorTypeNode(node: Node): node is ConstructorTypeNode;
    function isTypeQueryNode(node: Node): node is TypeQueryNode;
    function isTypeLiteralNode(node: Node): node is TypeLiteralNode;
    function isArrayTypeNode(node: Node): node is ArrayTypeNode;
    function isTupleTypeNode(node: Node): node is TupleTypeNode;
    function isUnionTypeNode(node: Node): node is UnionTypeNode;
    function isIntersectionTypeNode(node: Node): node is IntersectionTypeNode;
    function isConditionalTypeNode(node: Node): node is ConditionalTypeNode;
    function isInferTypeNode(node: Node): node is InferTypeNode;
    function isParenthesizedTypeNode(node: Node): node is ParenthesizedTypeNode;
    function isThisTypeNode(node: Node): node is ThisTypeNode;
    function isTypeOperatorNode(node: Node): node is TypeOperatorNode;
    function isIndexedAccessTypeNode(node: Node): node is IndexedAccessTypeNode;
    function isMappedTypeNode(node: Node): node is MappedTypeNode;
    function isLiteralTypeNode(node: Node): node is LiteralTypeNode;
    function isImportTypeNode(node: Node): node is ImportTypeNode;
    function isObjectBindingPattern(node: Node): node is ObjectBindingPattern;
    function isArrayBindingPattern(node: Node): node is ArrayBindingPattern;
    function isBindingElement(node: Node): node is BindingElement;
    function isArrayLiteralExpression(node: Node): node is ArrayLiteralExpression;
    function isObjectLiteralExpression(node: Node): node is ObjectLiteralExpression;
    function isPropertyAccessExpression(node: Node): node is PropertyAccessExpression;
    function isElementAccessExpression(node: Node): node is ElementAccessExpression;
    function isCallExpression(node: Node): node is CallExpression;
    function isNewExpression(node: Node): node is NewExpression;
    function isTaggedTemplateExpression(node: Node): node is TaggedTemplateExpression;
    function isTypeAssertion(node: Node): node is TypeAssertion;
    function isConstTypeReference(node: Node): boolean;
    function isParenthesizedExpression(node: Node): node is ParenthesizedExpression;
    function skipPartiallyEmittedExpressions(node: Expression): Expression;
    function skipPartiallyEmittedExpressions(node: Node): Node;
    function isFunctionExpression(node: Node): node is FunctionExpression;
    function isArrowFunction(node: Node): node is ArrowFunction;
    function isDeleteExpression(node: Node): node is DeleteExpression;
    function isTypeOfExpression(node: Node): node is TypeOfExpression;
    function isVoidExpression(node: Node): node is VoidExpression;
    function isAwaitExpression(node: Node): node is AwaitExpression;
    function isPrefixUnaryExpression(node: Node): node is PrefixUnaryExpression;
    function isPostfixUnaryExpression(node: Node): node is PostfixUnaryExpression;
    function isBinaryExpression(node: Node): node is BinaryExpression;
    function isConditionalExpression(node: Node): node is ConditionalExpression;
    function isTemplateExpression(node: Node): node is TemplateExpression;
    function isYieldExpression(node: Node): node is YieldExpression;
    function isSpreadElement(node: Node): node is SpreadElement;
    function isClassExpression(node: Node): node is ClassExpression;
    function isOmittedExpression(node: Node): node is OmittedExpression;
    function isExpressionWithTypeArguments(node: Node): node is ExpressionWithTypeArguments;
    function isAsExpression(node: Node): node is AsExpression;
    function isNonNullExpression(node: Node): node is NonNullExpression;
    function isMetaProperty(node: Node): node is MetaProperty;
    function isTemplateSpan(node: Node): node is TemplateSpan;
    function isSemicolonClassElement(node: Node): node is SemicolonClassElement;
    function isBlock(node: Node): node is Block;
    function isVariableStatement(node: Node): node is VariableStatement;
    function isEmptyStatement(node: Node): node is EmptyStatement;
    function isExpressionStatement(node: Node): node is ExpressionStatement;
    function isIfStatement(node: Node): node is IfStatement;
    function isDoStatement(node: Node): node is DoStatement;
    function isWhileStatement(node: Node): node is WhileStatement;
    function isForStatement(node: Node): node is ForStatement;
    function isForInStatement(node: Node): node is ForInStatement;
    function isForOfStatement(node: Node): node is ForOfStatement;
    function isContinueStatement(node: Node): node is ContinueStatement;
    function isBreakStatement(node: Node): node is BreakStatement;
    function isBreakOrContinueStatement(node: Node): node is BreakOrContinueStatement;
    function isReturnStatement(node: Node): node is ReturnStatement;
    function isWithStatement(node: Node): node is WithStatement;
    function isSwitchStatement(node: Node): node is SwitchStatement;
    function isLabeledStatement(node: Node): node is LabeledStatement;
    function isThrowStatement(node: Node): node is ThrowStatement;
    function isTryStatement(node: Node): node is TryStatement;
    function isDebuggerStatement(node: Node): node is DebuggerStatement;
    function isVariableDeclaration(node: Node): node is VariableDeclaration;
    function isVariableDeclarationList(node: Node): node is VariableDeclarationList;
    function isFunctionDeclaration(node: Node): node is FunctionDeclaration;
    function isClassDeclaration(node: Node): node is ClassDeclaration;
    function isInterfaceDeclaration(node: Node): node is InterfaceDeclaration;
    function isTypeAliasDeclaration(node: Node): node is TypeAliasDeclaration;
    function isEnumDeclaration(node: Node): node is EnumDeclaration;
    function isModuleDeclaration(node: Node): node is ModuleDeclaration;
    function isModuleBlock(node: Node): node is ModuleBlock;
    function isCaseBlock(node: Node): node is CaseBlock;
    function isNamespaceExportDeclaration(node: Node): node is NamespaceExportDeclaration;
    function isImportEqualsDeclaration(node: Node): node is ImportEqualsDeclaration;
    function isImportDeclaration(node: Node): node is ImportDeclaration;
    function isImportClause(node: Node): node is ImportClause;
    function isNamespaceImport(node: Node): node is NamespaceImport;
    function isNamedImports(node: Node): node is NamedImports;
    function isImportSpecifier(node: Node): node is ImportSpecifier;
    function isExportAssignment(node: Node): node is ExportAssignment;
    function isExportDeclaration(node: Node): node is ExportDeclaration;
    function isNamedExports(node: Node): node is NamedExports;
    function isExportSpecifier(node: Node): node is ExportSpecifier;
    function isMissingDeclaration(node: Node): node is MissingDeclaration;
    function isExternalModuleReference(node: Node): node is ExternalModuleReference;
    function isJsxElement(node: Node): node is JsxElement;
    function isJsxSelfClosingElement(node: Node): node is JsxSelfClosingElement;
    function isJsxOpeningElement(node: Node): node is JsxOpeningElement;
    function isJsxClosingElement(node: Node): node is JsxClosingElement;
    function isJsxFragment(node: Node): node is JsxFragment;
    function isJsxOpeningFragment(node: Node): node is JsxOpeningFragment;
    function isJsxClosingFragment(node: Node): node is JsxClosingFragment;
    function isJsxAttribute(node: Node): node is JsxAttribute;
    function isJsxAttributes(node: Node): node is JsxAttributes;
    function isJsxSpreadAttribute(node: Node): node is JsxSpreadAttribute;
    function isJsxExpression(node: Node): node is JsxExpression;
    function isCaseClause(node: Node): node is CaseClause;
    function isDefaultClause(node: Node): node is DefaultClause;
    function isHeritageClause(node: Node): node is HeritageClause;
    function isCatchClause(node: Node): node is CatchClause;
    function isPropertyAssignment(node: Node): node is PropertyAssignment;
    function isShorthandPropertyAssignment(node: Node): node is ShorthandPropertyAssignment;
    function isSpreadAssignment(node: Node): node is SpreadAssignment;
    function isEnumMember(node: Node): node is EnumMember;
    function isSourceFile(node: Node): node is SourceFile;
    function isBundle(node: Node): node is Bundle;
    function isUnparsedSource(node: Node): node is UnparsedSource;
    function isUnparsedPrepend(node: Node): node is UnparsedPrepend;
    function isUnparsedTextLike(node: Node): node is UnparsedTextLike;
    function isUnparsedNode(node: Node): node is UnparsedNode;
    function isJSDocTypeExpression(node: Node): node is JSDocTypeExpression;
    function isJSDocAllType(node: JSDocAllType): node is JSDocAllType;
    function isJSDocUnknownType(node: Node): node is JSDocUnknownType;
    function isJSDocNullableType(node: Node): node is JSDocNullableType;
    function isJSDocNonNullableType(node: Node): node is JSDocNonNullableType;
    function isJSDocOptionalType(node: Node): node is JSDocOptionalType;
    function isJSDocFunctionType(node: Node): node is JSDocFunctionType;
    function isJSDocVariadicType(node: Node): node is JSDocVariadicType;
    function isJSDoc(node: Node): node is JSDoc;
    function isJSDocAugmentsTag(node: Node): node is JSDocAugmentsTag;
    function isJSDocClassTag(node: Node): node is JSDocClassTag;
    function isJSDocEnumTag(node: Node): node is JSDocEnumTag;
    function isJSDocThisTag(node: Node): node is JSDocThisTag;
    function isJSDocParameterTag(node: Node): node is JSDocParameterTag;
    function isJSDocReturnTag(node: Node): node is JSDocReturnTag;
    function isJSDocTypeTag(node: Node): node is JSDocTypeTag;
    function isJSDocTemplateTag(node: Node): node is JSDocTemplateTag;
    function isJSDocTypedefTag(node: Node): node is JSDocTypedefTag;
    function isJSDocPropertyTag(node: Node): node is JSDocPropertyTag;
    function isJSDocPropertyLikeTag(node: Node): node is JSDocPropertyLikeTag;
    function isJSDocTypeLiteral(node: Node): node is JSDocTypeLiteral;
    function isJSDocCallbackTag(node: Node): node is JSDocCallbackTag;
    function isJSDocSignature(node: Node): node is JSDocSignature;
}
declare namespace ts {
    /**
     * True if node is of some token syntax kind.
     * For example, this is true for an IfKeyword but not for an IfStatement.
     * Literals are considered tokens, except TemplateLiteral, but does include TemplateHead/Middle/Tail.
     */
    function isToken(n: Node): boolean;
    function isLiteralExpression(node: Node): node is LiteralExpression;
    type TemplateLiteralToken = NoSubstitutionTemplateLiteral | TemplateHead | TemplateMiddle | TemplateTail;
    function isTemplateLiteralToken(node: Node): node is TemplateLiteralToken;
    function isTemplateMiddleOrTemplateTail(node: Node): node is TemplateMiddle | TemplateTail;
    function isImportOrExportSpecifier(node: Node): node is ImportSpecifier | ExportSpecifier;
    function isStringTextContainingNode(node: Node): node is StringLiteral | TemplateLiteralToken;
    function isModifier(node: Node): node is Modifier;
    function isEntityName(node: Node): node is EntityName;
    function isPropertyName(node: Node): node is PropertyName;
    function isBindingName(node: Node): node is BindingName;
    function isFunctionLike(node: Node): node is SignatureDeclaration;
    function isClassElement(node: Node): node is ClassElement;
    function isClassLike(node: Node): node is ClassLikeDeclaration;
    function isAccessor(node: Node): node is AccessorDeclaration;
    function isTypeElement(node: Node): node is TypeElement;
    function isClassOrTypeElement(node: Node): node is ClassElement | TypeElement;
    function isObjectLiteralElementLike(node: Node): node is ObjectLiteralElementLike;
    /**
     * Node test that determines whether a node is a valid type node.
     * This differs from the `isPartOfTypeNode` function which determines whether a node is *part*
     * of a TypeNode.
     */
    function isTypeNode(node: Node): node is TypeNode;
    function isFunctionOrConstructorTypeNode(node: Node): node is FunctionTypeNode | ConstructorTypeNode;
    function isPropertyAccessOrQualifiedName(node: Node): node is PropertyAccessExpression | QualifiedName;
    function isCallLikeExpression(node: Node): node is CallLikeExpression;
    function isCallOrNewExpression(node: Node): node is CallExpression | NewExpression;
    function isTemplateLiteral(node: Node): node is TemplateLiteral;
    function isAssertionExpression(node: Node): node is AssertionExpression;
    function isIterationStatement(node: Node, lookInLabeledStatements: false): node is IterationStatement;
    function isIterationStatement(node: Node, lookInLabeledStatements: boolean): node is IterationStatement | LabeledStatement;
    function isJsxOpeningLikeElement(node: Node): node is JsxOpeningLikeElement;
    function isCaseOrDefaultClause(node: Node): node is CaseOrDefaultClause;
    /** True if node is of a kind that may contain comment text. */
    function isJSDocCommentContainingNode(node: Node): boolean;
    function isSetAccessor(node: Node): node is SetAccessorDeclaration;
    function isGetAccessor(node: Node): node is GetAccessorDeclaration;
    function isObjectLiteralElement(node: Node): node is ObjectLiteralElement;
    function isStringLiteralLike(node: Node): node is StringLiteralLike;
}
declare namespace ts {
    function createNode(kind: SyntaxKind, pos?: number, end?: number): Node;
    /**
     * Invokes a callback for each child of the given node. The 'cbNode' callback is invoked for all child nodes
     * stored in properties. If a 'cbNodes' callback is specified, it is invoked for embedded arrays; otherwise,
     * embedded arrays are flattened and the 'cbNode' callback is invoked for each element. If a callback returns
     * a truthy value, iteration stops and that value is returned. Otherwise, undefined is returned.
     *
     * @param node a given node to visit its children
     * @param cbNode a callback to be invoked for all child nodes
     * @param cbNodes a callback to be invoked for embedded array
     *
     * @remarks `forEachChild` must visit the children of a node in the order
     * that they appear in the source code. The language service depends on this property to locate nodes by position.
     */
    function forEachChild<T>(node: Node, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined;
    function createSourceFile(fileName: string, sourceText: string, languageVersion: ScriptTarget, setParentNodes?: boolean, scriptKind?: ScriptKind): SourceFile;
    function parseIsolatedEntityName(text: string, languageVersion: ScriptTarget): EntityName | undefined;
    /**
     * Parse json text into SyntaxTree and return node and parse errors if any
     * @param fileName
     * @param sourceText
     */
    function parseJsonText(fileName: string, sourceText: string): JsonSourceFile;
    function isExternalModule(file: SourceFile): boolean;
    function updateSourceFile(sourceFile: SourceFile, newText: string, textChangeRange: TextChangeRange, aggressiveChecks?: boolean): SourceFile;
}
declare namespace ts {
    function parseCommandLine(commandLine: ReadonlyArray<string>, readFile?: (path: string) => string | undefined): ParsedCommandLine;
    type DiagnosticReporter = (diagnostic: Diagnostic) => void;
    /**
     * Reports config file diagnostics
     */
    interface ConfigFileDiagnosticsReporter {
        /**
         * Reports unrecoverable error when parsing config file
         */
        onUnRecoverableConfigFileDiagnostic: DiagnosticReporter;
    }
    /**
     * Interface extending ParseConfigHost to support ParseConfigFile that reads config file and reports errors
     */
    interface ParseConfigFileHost extends ParseConfigHost, ConfigFileDiagnosticsReporter {
        getCurrentDirectory(): string;
    }
    /**
     * Reads the config file, reports errors if any and exits if the config file cannot be found
     */
    function getParsedCommandLineOfConfigFile(configFileName: string, optionsToExtend: CompilerOptions, host: ParseConfigFileHost, extendedConfigCache?: Map<ExtendedConfigCacheEntry>): ParsedCommandLine | undefined;
    /**
     * Read tsconfig.json file
     * @param fileName The path to the config file
     */
    function readConfigFile(fileName: string, readFile: (path: string) => string | undefined): {
        config?: any;
        error?: Diagnostic;
    };
    /**
     * Parse the text of the tsconfig.json file
     * @param fileName The path to the config file
     * @param jsonText The text of the config file
     */
    function parseConfigFileTextToJson(fileName: string, jsonText: string): {
        config?: any;
        error?: Diagnostic;
    };
    /**
     * Read tsconfig.json file
     * @param fileName The path to the config file
     */
    function readJsonConfigFile(fileName: string, readFile: (path: string) => string | undefined): TsConfigSourceFile;
    /**
     * Convert the json syntax tree into the json value
     */
    function convertToObject(sourceFile: JsonSourceFile, errors: Push<Diagnostic>): any;
    /**
     * Parse the contents of a config file (tsconfig.json).
     * @param json The contents of the config file to parse
     * @param host Instance of ParseConfigHost used to enumerate files in folder.
     * @param basePath A root directory to resolve relative path entries in the config
     *    file to. e.g. outDir
     */
    function parseJsonConfigFileContent(json: any, host: ParseConfigHost, basePath: string, existingOptions?: CompilerOptions, configFileName?: string, resolutionStack?: Path[], extraFileExtensions?: ReadonlyArray<FileExtensionInfo>, extendedConfigCache?: Map<ExtendedConfigCacheEntry>): ParsedCommandLine;
    /**
     * Parse the contents of a config file (tsconfig.json).
     * @param jsonNode The contents of the config file to parse
     * @param host Instance of ParseConfigHost used to enumerate files in folder.
     * @param basePath A root directory to resolve relative path entries in the config
     *    file to. e.g. outDir
     */
    function parseJsonSourceFileConfigFileContent(sourceFile: TsConfigSourceFile, host: ParseConfigHost, basePath: string, existingOptions?: CompilerOptions, configFileName?: string, resolutionStack?: Path[], extraFileExtensions?: ReadonlyArray<FileExtensionInfo>, extendedConfigCache?: Map<ExtendedConfigCacheEntry>): ParsedCommandLine;
    interface ParsedTsconfig {
        raw: any;
        options?: CompilerOptions;
        typeAcquisition?: TypeAcquisition;
        /**
         * Note that the case of the config path has not yet been normalized, as no files have been imported into the project yet
         */
        extendedConfigPath?: string;
    }
    interface ExtendedConfigCacheEntry {
        extendedResult: TsConfigSourceFile;
        extendedConfig: ParsedTsconfig | undefined;
    }
    function convertCompilerOptionsFromJson(jsonOptions: any, basePath: string, configFileName?: string): {
        options: CompilerOptions;
        errors: Diagnostic[];
    };
    function convertTypeAcquisitionFromJson(jsonOptions: any, basePath: string, configFileName?: string): {
        options: TypeAcquisition;
        errors: Diagnostic[];
    };
}
declare namespace ts {
    function getEffectiveTypeRoots(options: CompilerOptions, host: GetEffectiveTypeRootsHost): string[] | undefined;
    /**
     * @param {string | undefined} containingFile - file that contains type reference directive, can be undefined if containing file is unknown.
     * This is possible in case if resolution is performed for directives specified via 'types' parameter. In this case initial path for secondary lookups
     * is assumed to be the same as root directory of the project.
     */
    function resolveTypeReferenceDirective(typeReferenceDirectiveName: string, containingFile: string | undefined, options: CompilerOptions, host: ModuleResolutionHost, redirectedReference?: ResolvedProjectReference): ResolvedTypeReferenceDirectiveWithFailedLookupLocations;
    /**
     * Given a set of options, returns the set of type directive names
     *   that should be included for this program automatically.
     * This list could either come from the config file,
     *   or from enumerating the types root + initial secondary types lookup location.
     * More type directives might appear in the program later as a result of loading actual source files;
     *   this list is only the set of defaults that are implicitly included.
     */
    function getAutomaticTypeDirectiveNames(options: CompilerOptions, host: ModuleResolutionHost): string[];
    /**
     * Cached module resolutions per containing directory.
     * This assumes that any module id will have the same resolution for sibling files located in the same folder.
     */
    interface ModuleResolutionCache extends NonRelativeModuleNameResolutionCache {
        getOrCreateCacheForDirectory(directoryName: string, redirectedReference?: ResolvedProjectReference): Map<ResolvedModuleWithFailedLookupLocations>;
    }
    /**
     * Stored map from non-relative module name to a table: directory -> result of module lookup in this directory
     * We support only non-relative module names because resolution of relative module names is usually more deterministic and thus less expensive.
     */
    interface NonRelativeModuleNameResolutionCache {
        getOrCreateCacheForModuleName(nonRelativeModuleName: string, redirectedReference?: ResolvedProjectReference): PerModuleNameCache;
    }
    interface PerModuleNameCache {
        get(directory: string): ResolvedModuleWithFailedLookupLocations | undefined;
        set(directory: string, result: ResolvedModuleWithFailedLookupLocations): void;
    }
    function createModuleResolutionCache(currentDirectory: string, getCanonicalFileName: (s: string) => string, options?: CompilerOptions): ModuleResolutionCache;
    function resolveModuleNameFromCache(moduleName: string, containingFile: string, cache: ModuleResolutionCache): ResolvedModuleWithFailedLookupLocations | undefined;
    function resolveModuleName(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost, cache?: ModuleResolutionCache, redirectedReference?: ResolvedProjectReference): ResolvedModuleWithFailedLookupLocations;
    function nodeModuleNameResolver(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost, cache?: ModuleResolutionCache, redirectedReference?: ResolvedProjectReference): ResolvedModuleWithFailedLookupLocations;
    function classicNameResolver(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost, cache?: NonRelativeModuleNameResolutionCache, redirectedReference?: ResolvedProjectReference): ResolvedModuleWithFailedLookupLocations;
}
declare namespace ts {
    function createNodeArray<T extends Node>(elements?: ReadonlyArray<T>, hasTrailingComma?: boolean): NodeArray<T>;
    /** If a node is passed, creates a string literal whose source text is read from a source node during emit. */
    function createLiteral(value: string | StringLiteral | NoSubstitutionTemplateLiteral | NumericLiteral | Identifier): StringLiteral;
    function createLiteral(value: number | PseudoBigInt): NumericLiteral;
    function createLiteral(value: boolean): BooleanLiteral;
    function createLiteral(value: string | number | PseudoBigInt | boolean): PrimaryExpression;
    function createNumericLiteral(value: string, numericLiteralFlags?: TokenFlags): NumericLiteral;
    function createBigIntLiteral(value: string): BigIntLiteral;
    function createStringLiteral(text: string): StringLiteral;
    function createRegularExpressionLiteral(text: string): RegularExpressionLiteral;
    function createIdentifier(text: string): Identifier;
    function updateIdentifier(node: Identifier): Identifier;
    /** Create a unique temporary variable. */
    function createTempVariable(recordTempVariable: ((node: Identifier) => void) | undefined): Identifier;
    /** Create a unique temporary variable for use in a loop. */
    function createLoopVariable(): Identifier;
    /** Create a unique name based on the supplied text. */
    function createUniqueName(text: string): Identifier;
    /** Create a unique name based on the supplied text. */
    function createOptimisticUniqueName(text: string): Identifier;
    /** Create a unique name based on the supplied text. This does not consider names injected by the transformer. */
    function createFileLevelUniqueName(text: string): Identifier;
    /** Create a unique name generated for a node. */
    function getGeneratedNameForNode(node: Node | undefined): Identifier;
    function createToken<TKind extends SyntaxKind>(token: TKind): Token<TKind>;
    function createSuper(): SuperExpression;
    function createThis(): ThisExpression & Token<SyntaxKind.ThisKeyword>;
    function createNull(): NullLiteral & Token<SyntaxKind.NullKeyword>;
    function createTrue(): BooleanLiteral & Token<SyntaxKind.TrueKeyword>;
    function createFalse(): BooleanLiteral & Token<SyntaxKind.FalseKeyword>;
    function createModifier<T extends Modifier["kind"]>(kind: T): Token<T>;
    function createModifiersFromModifierFlags(flags: ModifierFlags): Modifier[];
    function createQualifiedName(left: EntityName, right: string | Identifier): QualifiedName;
    function updateQualifiedName(node: QualifiedName, left: EntityName, right: Identifier): QualifiedName;
    function createComputedPropertyName(expression: Expression): ComputedPropertyName;
    function updateComputedPropertyName(node: ComputedPropertyName, expression: Expression): ComputedPropertyName;
    function createTypeParameterDeclaration(name: string | Identifier, constraint?: TypeNode, defaultType?: TypeNode): TypeParameterDeclaration;
    function updateTypeParameterDeclaration(node: TypeParameterDeclaration, name: Identifier, constraint: TypeNode | undefined, defaultType: TypeNode | undefined): TypeParameterDeclaration;
    function createParameter(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, dotDotDotToken: DotDotDotToken | undefined, name: string | BindingName, questionToken?: QuestionToken, type?: TypeNode, initializer?: Expression): ParameterDeclaration;
    function updateParameter(node: ParameterDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, dotDotDotToken: DotDotDotToken | undefined, name: string | BindingName, questionToken: QuestionToken | undefined, type: TypeNode | undefined, initializer: Expression | undefined): ParameterDeclaration;
    function createDecorator(expression: Expression): Decorator;
    function updateDecorator(node: Decorator, expression: Expression): Decorator;
    function createPropertySignature(modifiers: ReadonlyArray<Modifier> | undefined, name: PropertyName | string, questionToken: QuestionToken | undefined, type: TypeNode | undefined, initializer: Expression | undefined): PropertySignature;
    function updatePropertySignature(node: PropertySignature, modifiers: ReadonlyArray<Modifier> | undefined, name: PropertyName, questionToken: QuestionToken | undefined, type: TypeNode | undefined, initializer: Expression | undefined): PropertySignature;
    function createProperty(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: string | PropertyName, questionOrExclamationToken: QuestionToken | ExclamationToken | undefined, type: TypeNode | undefined, initializer: Expression | undefined): PropertyDeclaration;
    function updateProperty(node: PropertyDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: string | PropertyName, questionOrExclamationToken: QuestionToken | ExclamationToken | undefined, type: TypeNode | undefined, initializer: Expression | undefined): PropertyDeclaration;
    function createMethodSignature(typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode | undefined, name: string | PropertyName, questionToken: QuestionToken | undefined): MethodSignature;
    function updateMethodSignature(node: MethodSignature, typeParameters: NodeArray<TypeParameterDeclaration> | undefined, parameters: NodeArray<ParameterDeclaration>, type: TypeNode | undefined, name: PropertyName, questionToken: QuestionToken | undefined): MethodSignature;
    function createMethod(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, asteriskToken: AsteriskToken | undefined, name: string | PropertyName, questionToken: QuestionToken | undefined, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode | undefined, body: Block | undefined): MethodDeclaration;
    function updateMethod(node: MethodDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, asteriskToken: AsteriskToken | undefined, name: PropertyName, questionToken: QuestionToken | undefined, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode | undefined, body: Block | undefined): MethodDeclaration;
    function createConstructor(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, body: Block | undefined): ConstructorDeclaration;
    function updateConstructor(node: ConstructorDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, body: Block | undefined): ConstructorDeclaration;
    function createGetAccessor(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: string | PropertyName, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode | undefined, body: Block | undefined): GetAccessorDeclaration;
    function updateGetAccessor(node: GetAccessorDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: PropertyName, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode | undefined, body: Block | undefined): GetAccessorDeclaration;
    function createSetAccessor(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: string | PropertyName, parameters: ReadonlyArray<ParameterDeclaration>, body: Block | undefined): SetAccessorDeclaration;
    function updateSetAccessor(node: SetAccessorDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: PropertyName, parameters: ReadonlyArray<ParameterDeclaration>, body: Block | undefined): SetAccessorDeclaration;
    function createCallSignature(typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode | undefined): CallSignatureDeclaration;
    function updateCallSignature(node: CallSignatureDeclaration, typeParameters: NodeArray<TypeParameterDeclaration> | undefined, parameters: NodeArray<ParameterDeclaration>, type: TypeNode | undefined): CallSignatureDeclaration;
    function createConstructSignature(typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode | undefined): ConstructSignatureDeclaration;
    function updateConstructSignature(node: ConstructSignatureDeclaration, typeParameters: NodeArray<TypeParameterDeclaration> | undefined, parameters: NodeArray<ParameterDeclaration>, type: TypeNode | undefined): ConstructSignatureDeclaration;
    function createIndexSignature(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode): IndexSignatureDeclaration;
    function updateIndexSignature(node: IndexSignatureDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode): IndexSignatureDeclaration;
    function createKeywordTypeNode(kind: KeywordTypeNode["kind"]): KeywordTypeNode;
    function createTypePredicateNode(parameterName: Identifier | ThisTypeNode | string, type: TypeNode): TypePredicateNode;
    function updateTypePredicateNode(node: TypePredicateNode, parameterName: Identifier | ThisTypeNode, type: TypeNode): TypePredicateNode;
    function createTypeReferenceNode(typeName: string | EntityName, typeArguments: ReadonlyArray<TypeNode> | undefined): TypeReferenceNode;
    function updateTypeReferenceNode(node: TypeReferenceNode, typeName: EntityName, typeArguments: NodeArray<TypeNode> | undefined): TypeReferenceNode;
    function createFunctionTypeNode(typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode | undefined): FunctionTypeNode;
    function updateFunctionTypeNode(node: FunctionTypeNode, typeParameters: NodeArray<TypeParameterDeclaration> | undefined, parameters: NodeArray<ParameterDeclaration>, type: TypeNode | undefined): FunctionTypeNode;
    function createConstructorTypeNode(typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode | undefined): ConstructorTypeNode;
    function updateConstructorTypeNode(node: ConstructorTypeNode, typeParameters: NodeArray<TypeParameterDeclaration> | undefined, parameters: NodeArray<ParameterDeclaration>, type: TypeNode | undefined): ConstructorTypeNode;
    function createTypeQueryNode(exprName: EntityName): TypeQueryNode;
    function updateTypeQueryNode(node: TypeQueryNode, exprName: EntityName): TypeQueryNode;
    function createTypeLiteralNode(members: ReadonlyArray<TypeElement> | undefined): TypeLiteralNode;
    function updateTypeLiteralNode(node: TypeLiteralNode, members: NodeArray<TypeElement>): TypeLiteralNode;
    function createArrayTypeNode(elementType: TypeNode): ArrayTypeNode;
    function updateArrayTypeNode(node: ArrayTypeNode, elementType: TypeNode): ArrayTypeNode;
    function createTupleTypeNode(elementTypes: ReadonlyArray<TypeNode>): TupleTypeNode;
    function updateTupleTypeNode(node: TupleTypeNode, elementTypes: ReadonlyArray<TypeNode>): TupleTypeNode;
    function createOptionalTypeNode(type: TypeNode): OptionalTypeNode;
    function updateOptionalTypeNode(node: OptionalTypeNode, type: TypeNode): OptionalTypeNode;
    function createRestTypeNode(type: TypeNode): RestTypeNode;
    function updateRestTypeNode(node: RestTypeNode, type: TypeNode): RestTypeNode;
    function createUnionTypeNode(types: ReadonlyArray<TypeNode>): UnionTypeNode;
    function updateUnionTypeNode(node: UnionTypeNode, types: NodeArray<TypeNode>): UnionTypeNode;
    function createIntersectionTypeNode(types: ReadonlyArray<TypeNode>): IntersectionTypeNode;
    function updateIntersectionTypeNode(node: IntersectionTypeNode, types: NodeArray<TypeNode>): IntersectionTypeNode;
    function createUnionOrIntersectionTypeNode(kind: SyntaxKind.UnionType | SyntaxKind.IntersectionType, types: ReadonlyArray<TypeNode>): UnionOrIntersectionTypeNode;
    function createConditionalTypeNode(checkType: TypeNode, extendsType: TypeNode, trueType: TypeNode, falseType: TypeNode): ConditionalTypeNode;
    function updateConditionalTypeNode(node: ConditionalTypeNode, checkType: TypeNode, extendsType: TypeNode, trueType: TypeNode, falseType: TypeNode): ConditionalTypeNode;
    function createInferTypeNode(typeParameter: TypeParameterDeclaration): InferTypeNode;
    function updateInferTypeNode(node: InferTypeNode, typeParameter: TypeParameterDeclaration): InferTypeNode;
    function createImportTypeNode(argument: TypeNode, qualifier?: EntityName, typeArguments?: ReadonlyArray<TypeNode>, isTypeOf?: boolean): ImportTypeNode;
    function updateImportTypeNode(node: ImportTypeNode, argument: TypeNode, qualifier?: EntityName, typeArguments?: ReadonlyArray<TypeNode>, isTypeOf?: boolean): ImportTypeNode;
    function createParenthesizedType(type: TypeNode): ParenthesizedTypeNode;
    function updateParenthesizedType(node: ParenthesizedTypeNode, type: TypeNode): ParenthesizedTypeNode;
    function createThisTypeNode(): ThisTypeNode;
    function createTypeOperatorNode(type: TypeNode): TypeOperatorNode;
    function createTypeOperatorNode(operator: SyntaxKind.KeyOfKeyword | SyntaxKind.UniqueKeyword | SyntaxKind.ReadonlyKeyword, type: TypeNode): TypeOperatorNode;
    function updateTypeOperatorNode(node: TypeOperatorNode, type: TypeNode): TypeOperatorNode;
    function createIndexedAccessTypeNode(objectType: TypeNode, indexType: TypeNode): IndexedAccessTypeNode;
    function updateIndexedAccessTypeNode(node: IndexedAccessTypeNode, objectType: TypeNode, indexType: TypeNode): IndexedAccessTypeNode;
    function createMappedTypeNode(readonlyToken: ReadonlyToken | PlusToken | MinusToken | undefined, typeParameter: TypeParameterDeclaration, questionToken: QuestionToken | PlusToken | MinusToken | undefined, type: TypeNode | undefined): MappedTypeNode;
    function updateMappedTypeNode(node: MappedTypeNode, readonlyToken: ReadonlyToken | PlusToken | MinusToken | undefined, typeParameter: TypeParameterDeclaration, questionToken: QuestionToken | PlusToken | MinusToken | undefined, type: TypeNode | undefined): MappedTypeNode;
    function createLiteralTypeNode(literal: LiteralTypeNode["literal"]): LiteralTypeNode;
    function updateLiteralTypeNode(node: LiteralTypeNode, literal: LiteralTypeNode["literal"]): LiteralTypeNode;
    function createObjectBindingPattern(elements: ReadonlyArray<BindingElement>): ObjectBindingPattern;
    function updateObjectBindingPattern(node: ObjectBindingPattern, elements: ReadonlyArray<BindingElement>): ObjectBindingPattern;
    function createArrayBindingPattern(elements: ReadonlyArray<ArrayBindingElement>): ArrayBindingPattern;
    function updateArrayBindingPattern(node: ArrayBindingPattern, elements: ReadonlyArray<ArrayBindingElement>): ArrayBindingPattern;
    function createBindingElement(dotDotDotToken: DotDotDotToken | undefined, propertyName: string | PropertyName | undefined, name: string | BindingName, initializer?: Expression): BindingElement;
    function updateBindingElement(node: BindingElement, dotDotDotToken: DotDotDotToken | undefined, propertyName: PropertyName | undefined, name: BindingName, initializer: Expression | undefined): BindingElement;
    function createArrayLiteral(elements?: ReadonlyArray<Expression>, multiLine?: boolean): ArrayLiteralExpression;
    function updateArrayLiteral(node: ArrayLiteralExpression, elements: ReadonlyArray<Expression>): ArrayLiteralExpression;
    function createObjectLiteral(properties?: ReadonlyArray<ObjectLiteralElementLike>, multiLine?: boolean): ObjectLiteralExpression;
    function updateObjectLiteral(node: ObjectLiteralExpression, properties: ReadonlyArray<ObjectLiteralElementLike>): ObjectLiteralExpression;
    function createPropertyAccess(expression: Expression, name: string | Identifier): PropertyAccessExpression;
    function updatePropertyAccess(node: PropertyAccessExpression, expression: Expression, name: Identifier): PropertyAccessExpression;
    function createElementAccess(expression: Expression, index: number | Expression): ElementAccessExpression;
    function updateElementAccess(node: ElementAccessExpression, expression: Expression, argumentExpression: Expression): ElementAccessExpression;
    function createCall(expression: Expression, typeArguments: ReadonlyArray<TypeNode> | undefined, argumentsArray: ReadonlyArray<Expression> | undefined): CallExpression;
    function updateCall(node: CallExpression, expression: Expression, typeArguments: ReadonlyArray<TypeNode> | undefined, argumentsArray: ReadonlyArray<Expression>): CallExpression;
    function createNew(expression: Expression, typeArguments: ReadonlyArray<TypeNode> | undefined, argumentsArray: ReadonlyArray<Expression> | undefined): NewExpression;
    function updateNew(node: NewExpression, expression: Expression, typeArguments: ReadonlyArray<TypeNode> | undefined, argumentsArray: ReadonlyArray<Expression> | undefined): NewExpression;
    /** @deprecated */ function createTaggedTemplate(tag: Expression, template: TemplateLiteral): TaggedTemplateExpression;
    function createTaggedTemplate(tag: Expression, typeArguments: ReadonlyArray<TypeNode> | undefined, template: TemplateLiteral): TaggedTemplateExpression;
    /** @deprecated */ function updateTaggedTemplate(node: TaggedTemplateExpression, tag: Expression, template: TemplateLiteral): TaggedTemplateExpression;
    function updateTaggedTemplate(node: TaggedTemplateExpression, tag: Expression, typeArguments: ReadonlyArray<TypeNode> | undefined, template: TemplateLiteral): TaggedTemplateExpression;
    function createTypeAssertion(type: TypeNode, expression: Expression): TypeAssertion;
    function updateTypeAssertion(node: TypeAssertion, type: TypeNode, expression: Expression): TypeAssertion;
    function createParen(expression: Expression): ParenthesizedExpression;
    function updateParen(node: ParenthesizedExpression, expression: Expression): ParenthesizedExpression;
    function createFunctionExpression(modifiers: ReadonlyArray<Modifier> | undefined, asteriskToken: AsteriskToken | undefined, name: string | Identifier | undefined, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, parameters: ReadonlyArray<ParameterDeclaration> | undefined, type: TypeNode | undefined, body: Block): FunctionExpression;
    function updateFunctionExpression(node: FunctionExpression, modifiers: ReadonlyArray<Modifier> | undefined, asteriskToken: AsteriskToken | undefined, name: Identifier | undefined, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode | undefined, body: Block): FunctionExpression;
    function createArrowFunction(modifiers: ReadonlyArray<Modifier> | undefined, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode | undefined, equalsGreaterThanToken: EqualsGreaterThanToken | undefined, body: ConciseBody): ArrowFunction;
    function updateArrowFunction(node: ArrowFunction, modifiers: ReadonlyArray<Modifier> | undefined, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode | undefined, equalsGreaterThanToken: Token<SyntaxKind.EqualsGreaterThanToken>, body: ConciseBody): ArrowFunction;
    function createDelete(expression: Expression): DeleteExpression;
    function updateDelete(node: DeleteExpression, expression: Expression): DeleteExpression;
    function createTypeOf(expression: Expression): TypeOfExpression;
    function updateTypeOf(node: TypeOfExpression, expression: Expression): TypeOfExpression;
    function createVoid(expression: Expression): VoidExpression;
    function updateVoid(node: VoidExpression, expression: Expression): VoidExpression;
    function createAwait(expression: Expression): AwaitExpression;
    function updateAwait(node: AwaitExpression, expression: Expression): AwaitExpression;
    function createPrefix(operator: PrefixUnaryOperator, operand: Expression): PrefixUnaryExpression;
    function updatePrefix(node: PrefixUnaryExpression, operand: Expression): PrefixUnaryExpression;
    function createPostfix(operand: Expression, operator: PostfixUnaryOperator): PostfixUnaryExpression;
    function updatePostfix(node: PostfixUnaryExpression, operand: Expression): PostfixUnaryExpression;
    function createBinary(left: Expression, operator: BinaryOperator | BinaryOperatorToken, right: Expression): BinaryExpression;
    function updateBinary(node: BinaryExpression, left: Expression, right: Expression, operator?: BinaryOperator | BinaryOperatorToken): BinaryExpression;
    /** @deprecated */ function createConditional(condition: Expression, whenTrue: Expression, whenFalse: Expression): ConditionalExpression;
    function createConditional(condition: Expression, questionToken: QuestionToken, whenTrue: Expression, colonToken: ColonToken, whenFalse: Expression): ConditionalExpression;
    function updateConditional(node: ConditionalExpression, condition: Expression, questionToken: Token<SyntaxKind.QuestionToken>, whenTrue: Expression, colonToken: Token<SyntaxKind.ColonToken>, whenFalse: Expression): ConditionalExpression;
    function createTemplateExpression(head: TemplateHead, templateSpans: ReadonlyArray<TemplateSpan>): TemplateExpression;
    function updateTemplateExpression(node: TemplateExpression, head: TemplateHead, templateSpans: ReadonlyArray<TemplateSpan>): TemplateExpression;
    function createTemplateHead(text: string): TemplateHead;
    function createTemplateMiddle(text: string): TemplateMiddle;
    function createTemplateTail(text: string): TemplateTail;
    function createNoSubstitutionTemplateLiteral(text: string): NoSubstitutionTemplateLiteral;
    function createYield(expression?: Expression): YieldExpression;
    function createYield(asteriskToken: AsteriskToken | undefined, expression: Expression): YieldExpression;
    function updateYield(node: YieldExpression, asteriskToken: AsteriskToken | undefined, expression: Expression): YieldExpression;
    function createSpread(expression: Expression): SpreadElement;
    function updateSpread(node: SpreadElement, expression: Expression): SpreadElement;
    function createClassExpression(modifiers: ReadonlyArray<Modifier> | undefined, name: string | Identifier | undefined, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, heritageClauses: ReadonlyArray<HeritageClause> | undefined, members: ReadonlyArray<ClassElement>): ClassExpression;
    function updateClassExpression(node: ClassExpression, modifiers: ReadonlyArray<Modifier> | undefined, name: Identifier | undefined, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, heritageClauses: ReadonlyArray<HeritageClause> | undefined, members: ReadonlyArray<ClassElement>): ClassExpression;
    function createOmittedExpression(): OmittedExpression;
    function createExpressionWithTypeArguments(typeArguments: ReadonlyArray<TypeNode> | undefined, expression: Expression): ExpressionWithTypeArguments;
    function updateExpressionWithTypeArguments(node: ExpressionWithTypeArguments, typeArguments: ReadonlyArray<TypeNode> | undefined, expression: Expression): ExpressionWithTypeArguments;
    function createAsExpression(expression: Expression, type: TypeNode): AsExpression;
    function updateAsExpression(node: AsExpression, expression: Expression, type: TypeNode): AsExpression;
    function createNonNullExpression(expression: Expression): NonNullExpression;
    function updateNonNullExpression(node: NonNullExpression, expression: Expression): NonNullExpression;
    function createMetaProperty(keywordToken: MetaProperty["keywordToken"], name: Identifier): MetaProperty;
    function updateMetaProperty(node: MetaProperty, name: Identifier): MetaProperty;
    function createTemplateSpan(expression: Expression, literal: TemplateMiddle | TemplateTail): TemplateSpan;
    function updateTemplateSpan(node: TemplateSpan, expression: Expression, literal: TemplateMiddle | TemplateTail): TemplateSpan;
    function createSemicolonClassElement(): SemicolonClassElement;
    function createBlock(statements: ReadonlyArray<Statement>, multiLine?: boolean): Block;
    function updateBlock(node: Block, statements: ReadonlyArray<Statement>): Block;
    function createVariableStatement(modifiers: ReadonlyArray<Modifier> | undefined, declarationList: VariableDeclarationList | ReadonlyArray<VariableDeclaration>): VariableStatement;
    function updateVariableStatement(node: VariableStatement, modifiers: ReadonlyArray<Modifier> | undefined, declarationList: VariableDeclarationList): VariableStatement;
    function createEmptyStatement(): EmptyStatement;
    function createExpressionStatement(expression: Expression): ExpressionStatement;
    function updateExpressionStatement(node: ExpressionStatement, expression: Expression): ExpressionStatement;
    /** @deprecated Use `createExpressionStatement` instead.  */
    const createStatement: typeof createExpressionStatement;
    /** @deprecated Use `updateExpressionStatement` instead.  */
    const updateStatement: typeof updateExpressionStatement;
    function createIf(expression: Expression, thenStatement: Statement, elseStatement?: Statement): IfStatement;
    function updateIf(node: IfStatement, expression: Expression, thenStatement: Statement, elseStatement: Statement | undefined): IfStatement;
    function createDo(statement: Statement, expression: Expression): DoStatement;
    function updateDo(node: DoStatement, statement: Statement, expression: Expression): DoStatement;
    function createWhile(expression: Expression, statement: Statement): WhileStatement;
    function updateWhile(node: WhileStatement, expression: Expression, statement: Statement): WhileStatement;
    function createFor(initializer: ForInitializer | undefined, condition: Expression | undefined, incrementor: Expression | undefined, statement: Statement): ForStatement;
    function updateFor(node: ForStatement, initializer: ForInitializer | undefined, condition: Expression | undefined, incrementor: Expression | undefined, statement: Statement): ForStatement;
    function createForIn(initializer: ForInitializer, expression: Expression, statement: Statement): ForInStatement;
    function updateForIn(node: ForInStatement, initializer: ForInitializer, expression: Expression, statement: Statement): ForInStatement;
    function createForOf(awaitModifier: AwaitKeywordToken | undefined, initializer: ForInitializer, expression: Expression, statement: Statement): ForOfStatement;
    function updateForOf(node: ForOfStatement, awaitModifier: AwaitKeywordToken | undefined, initializer: ForInitializer, expression: Expression, statement: Statement): ForOfStatement;
    function createContinue(label?: string | Identifier): ContinueStatement;
    function updateContinue(node: ContinueStatement, label: Identifier | undefined): ContinueStatement;
    function createBreak(label?: string | Identifier): BreakStatement;
    function updateBreak(node: BreakStatement, label: Identifier | undefined): BreakStatement;
    function createReturn(expression?: Expression): ReturnStatement;
    function updateReturn(node: ReturnStatement, expression: Expression | undefined): ReturnStatement;
    function createWith(expression: Expression, statement: Statement): WithStatement;
    function updateWith(node: WithStatement, expression: Expression, statement: Statement): WithStatement;
    function createSwitch(expression: Expression, caseBlock: CaseBlock): SwitchStatement;
    function updateSwitch(node: SwitchStatement, expression: Expression, caseBlock: CaseBlock): SwitchStatement;
    function createLabel(label: string | Identifier, statement: Statement): LabeledStatement;
    function updateLabel(node: LabeledStatement, label: Identifier, statement: Statement): LabeledStatement;
    function createThrow(expression: Expression): ThrowStatement;
    function updateThrow(node: ThrowStatement, expression: Expression): ThrowStatement;
    function createTry(tryBlock: Block, catchClause: CatchClause | undefined, finallyBlock: Block | undefined): TryStatement;
    function updateTry(node: TryStatement, tryBlock: Block, catchClause: CatchClause | undefined, finallyBlock: Block | undefined): TryStatement;
    function createDebuggerStatement(): DebuggerStatement;
    function createVariableDeclaration(name: string | BindingName, type?: TypeNode, initializer?: Expression): VariableDeclaration;
    function updateVariableDeclaration(node: VariableDeclaration, name: BindingName, type: TypeNode | undefined, initializer: Expression | undefined): VariableDeclaration;
    function createVariableDeclarationList(declarations: ReadonlyArray<VariableDeclaration>, flags?: NodeFlags): VariableDeclarationList;
    function updateVariableDeclarationList(node: VariableDeclarationList, declarations: ReadonlyArray<VariableDeclaration>): VariableDeclarationList;
    function createFunctionDeclaration(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, asteriskToken: AsteriskToken | undefined, name: string | Identifier | undefined, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode | undefined, body: Block | undefined): FunctionDeclaration;
    function updateFunctionDeclaration(node: FunctionDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, asteriskToken: AsteriskToken | undefined, name: Identifier | undefined, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, parameters: ReadonlyArray<ParameterDeclaration>, type: TypeNode | undefined, body: Block | undefined): FunctionDeclaration;
    function createClassDeclaration(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: string | Identifier | undefined, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, heritageClauses: ReadonlyArray<HeritageClause> | undefined, members: ReadonlyArray<ClassElement>): ClassDeclaration;
    function updateClassDeclaration(node: ClassDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: Identifier | undefined, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, heritageClauses: ReadonlyArray<HeritageClause> | undefined, members: ReadonlyArray<ClassElement>): ClassDeclaration;
    function createInterfaceDeclaration(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: string | Identifier, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, heritageClauses: ReadonlyArray<HeritageClause> | undefined, members: ReadonlyArray<TypeElement>): InterfaceDeclaration;
    function updateInterfaceDeclaration(node: InterfaceDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: Identifier, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, heritageClauses: ReadonlyArray<HeritageClause> | undefined, members: ReadonlyArray<TypeElement>): InterfaceDeclaration;
    function createTypeAliasDeclaration(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: string | Identifier, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, type: TypeNode): TypeAliasDeclaration;
    function updateTypeAliasDeclaration(node: TypeAliasDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: Identifier, typeParameters: ReadonlyArray<TypeParameterDeclaration> | undefined, type: TypeNode): TypeAliasDeclaration;
    function createEnumDeclaration(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: string | Identifier, members: ReadonlyArray<EnumMember>): EnumDeclaration;
    function updateEnumDeclaration(node: EnumDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: Identifier, members: ReadonlyArray<EnumMember>): EnumDeclaration;
    function createModuleDeclaration(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: ModuleName, body: ModuleBody | undefined, flags?: NodeFlags): ModuleDeclaration;
    function updateModuleDeclaration(node: ModuleDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: ModuleName, body: ModuleBody | undefined): ModuleDeclaration;
    function createModuleBlock(statements: ReadonlyArray<Statement>): ModuleBlock;
    function updateModuleBlock(node: ModuleBlock, statements: ReadonlyArray<Statement>): ModuleBlock;
    function createCaseBlock(clauses: ReadonlyArray<CaseOrDefaultClause>): CaseBlock;
    function updateCaseBlock(node: CaseBlock, clauses: ReadonlyArray<CaseOrDefaultClause>): CaseBlock;
    function createNamespaceExportDeclaration(name: string | Identifier): NamespaceExportDeclaration;
    function updateNamespaceExportDeclaration(node: NamespaceExportDeclaration, name: Identifier): NamespaceExportDeclaration;
    function createImportEqualsDeclaration(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: string | Identifier, moduleReference: ModuleReference): ImportEqualsDeclaration;
    function updateImportEqualsDeclaration(node: ImportEqualsDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, name: Identifier, moduleReference: ModuleReference): ImportEqualsDeclaration;
    function createImportDeclaration(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, importClause: ImportClause | undefined, moduleSpecifier: Expression): ImportDeclaration;
    function updateImportDeclaration(node: ImportDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, importClause: ImportClause | undefined, moduleSpecifier: Expression): ImportDeclaration;
    function createImportClause(name: Identifier | undefined, namedBindings: NamedImportBindings | undefined): ImportClause;
    function updateImportClause(node: ImportClause, name: Identifier | undefined, namedBindings: NamedImportBindings | undefined): ImportClause;
    function createNamespaceImport(name: Identifier): NamespaceImport;
    function updateNamespaceImport(node: NamespaceImport, name: Identifier): NamespaceImport;
    function createNamedImports(elements: ReadonlyArray<ImportSpecifier>): NamedImports;
    function updateNamedImports(node: NamedImports, elements: ReadonlyArray<ImportSpecifier>): NamedImports;
    function createImportSpecifier(propertyName: Identifier | undefined, name: Identifier): ImportSpecifier;
    function updateImportSpecifier(node: ImportSpecifier, propertyName: Identifier | undefined, name: Identifier): ImportSpecifier;
    function createExportAssignment(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, isExportEquals: boolean | undefined, expression: Expression): ExportAssignment;
    function updateExportAssignment(node: ExportAssignment, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, expression: Expression): ExportAssignment;
    function createExportDeclaration(decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, exportClause: NamedExports | undefined, moduleSpecifier?: Expression): ExportDeclaration;
    function updateExportDeclaration(node: ExportDeclaration, decorators: ReadonlyArray<Decorator> | undefined, modifiers: ReadonlyArray<Modifier> | undefined, exportClause: NamedExports | undefined, moduleSpecifier: Expression | undefined): ExportDeclaration;
    function createNamedExports(elements: ReadonlyArray<ExportSpecifier>): NamedExports;
    function updateNamedExports(node: NamedExports, elements: ReadonlyArray<ExportSpecifier>): NamedExports;
    function createExportSpecifier(propertyName: string | Identifier | undefined, name: string | Identifier): ExportSpecifier;
    function updateExportSpecifier(node: ExportSpecifier, propertyName: Identifier | undefined, name: Identifier): ExportSpecifier;
    function createExternalModuleReference(expression: Expression): ExternalModuleReference;
    function updateExternalModuleReference(node: ExternalModuleReference, expression: Expression): ExternalModuleReference;
    function createJsxElement(openingElement: JsxOpeningElement, children: ReadonlyArray<JsxChild>, closingElement: JsxClosingElement): JsxElement;
    function updateJsxElement(node: JsxElement, openingElement: JsxOpeningElement, children: ReadonlyArray<JsxChild>, closingElement: JsxClosingElement): JsxElement;
    function createJsxSelfClosingElement(tagName: JsxTagNameExpression, typeArguments: ReadonlyArray<TypeNode> | undefined, attributes: JsxAttributes): JsxSelfClosingElement;
    function updateJsxSelfClosingElement(node: JsxSelfClosingElement, tagName: JsxTagNameExpression, typeArguments: ReadonlyArray<TypeNode> | undefined, attributes: JsxAttributes): JsxSelfClosingElement;
    function createJsxOpeningElement(tagName: JsxTagNameExpression, typeArguments: ReadonlyArray<TypeNode> | undefined, attributes: JsxAttributes): JsxOpeningElement;
    function updateJsxOpeningElement(node: JsxOpeningElement, tagName: JsxTagNameExpression, typeArguments: ReadonlyArray<TypeNode> | undefined, attributes: JsxAttributes): JsxOpeningElement;
    function createJsxClosingElement(tagName: JsxTagNameExpression): JsxClosingElement;
    function updateJsxClosingElement(node: JsxClosingElement, tagName: JsxTagNameExpression): JsxClosingElement;
    function createJsxFragment(openingFragment: JsxOpeningFragment, children: ReadonlyArray<JsxChild>, closingFragment: JsxClosingFragment): JsxFragment;
    function createJsxText(text: string, containsOnlyTriviaWhiteSpaces?: boolean): JsxText;
    function updateJsxText(node: JsxText, text: string, containsOnlyTriviaWhiteSpaces?: boolean): JsxText;
    function createJsxOpeningFragment(): JsxOpeningFragment;
    function createJsxJsxClosingFragment(): JsxClosingFragment;
    function updateJsxFragment(node: JsxFragment, openingFragment: JsxOpeningFragment, children: ReadonlyArray<JsxChild>, closingFragment: JsxClosingFragment): JsxFragment;
    function createJsxAttribute(name: Identifier, initializer: StringLiteral | JsxExpression): JsxAttribute;
    function updateJsxAttribute(node: JsxAttribute, name: Identifier, initializer: StringLiteral | JsxExpression): JsxAttribute;
    function createJsxAttributes(properties: ReadonlyArray<JsxAttributeLike>): JsxAttributes;
    function updateJsxAttributes(node: JsxAttributes, properties: ReadonlyArray<JsxAttributeLike>): JsxAttributes;
    function createJsxSpreadAttribute(expression: Expression): JsxSpreadAttribute;
    function updateJsxSpreadAttribute(node: JsxSpreadAttribute, expression: Expression): JsxSpreadAttribute;
    function createJsxExpression(dotDotDotToken: DotDotDotToken | undefined, expression: Expression | undefined): JsxExpression;
    function updateJsxExpression(node: JsxExpression, expression: Expression | undefined): JsxExpression;
    function createCaseClause(expression: Expression, statements: ReadonlyArray<Statement>): CaseClause;
    function updateCaseClause(node: CaseClause, expression: Expression, statements: ReadonlyArray<Statement>): CaseClause;
    function createDefaultClause(statements: ReadonlyArray<Statement>): DefaultClause;
    function updateDefaultClause(node: DefaultClause, statements: ReadonlyArray<Statement>): DefaultClause;
    function createHeritageClause(token: HeritageClause["token"], types: ReadonlyArray<ExpressionWithTypeArguments>): HeritageClause;
    function updateHeritageClause(node: HeritageClause, types: ReadonlyArray<ExpressionWithTypeArguments>): HeritageClause;
    function createCatchClause(variableDeclaration: string | VariableDeclaration | undefined, block: Block): CatchClause;
    function updateCatchClause(node: CatchClause, variableDeclaration: VariableDeclaration | undefined, block: Block): CatchClause;
    function createPropertyAssignment(name: string | PropertyName, initializer: Expression): PropertyAssignment;
    function updatePropertyAssignment(node: PropertyAssignment, name: PropertyName, initializer: Expression): PropertyAssignment;
    function createShorthandPropertyAssignment(name: string | Identifier, objectAssignmentInitializer?: Expression): ShorthandPropertyAssignment;
    function updateShorthandPropertyAssignment(node: ShorthandPropertyAssignment, name: Identifier, objectAssignmentInitializer: Expression | undefined): ShorthandPropertyAssignment;
    function createSpreadAssignment(expression: Expression): SpreadAssignment;
    function updateSpreadAssignment(node: SpreadAssignment, expression: Expression): SpreadAssignment;
    function createEnumMember(name: string | PropertyName, initializer?: Expression): EnumMember;
    function updateEnumMember(node: EnumMember, name: PropertyName, initializer: Expression | undefined): EnumMember;
    function updateSourceFileNode(node: SourceFile, statements: ReadonlyArray<Statement>, isDeclarationFile?: boolean, referencedFiles?: SourceFile["referencedFiles"], typeReferences?: SourceFile["typeReferenceDirectives"], hasNoDefaultLib?: boolean, libReferences?: SourceFile["libReferenceDirectives"]): SourceFile;
    /**
     * Creates a shallow, memberwise clone of a node for mutation.
     */
    function getMutableClone<T extends Node>(node: T): T;
    /**
     * Creates a synthetic statement to act as a placeholder for a not-emitted statement in
     * order to preserve comments.
     *
     * @param original The original statement.
     */
    function createNotEmittedStatement(original: Node): NotEmittedStatement;
    /**
     * Creates a synthetic expression to act as a placeholder for a not-emitted expression in
     * order to preserve comments or sourcemap positions.
     *
     * @param expression The inner expression to emit.
     * @param original The original outer expression.
     * @param location The location for the expression. Defaults to the positions from "original" if provided.
     */
    function createPartiallyEmittedExpression(expression: Expression, original?: Node): PartiallyEmittedExpression;
    function updatePartiallyEmittedExpression(node: PartiallyEmittedExpression, expression: Expression): PartiallyEmittedExpression;
    function createCommaList(elements: ReadonlyArray<Expression>): CommaListExpression;
    function updateCommaList(node: CommaListExpression, elements: ReadonlyArray<Expression>): CommaListExpression;
    function createBundle(sourceFiles: ReadonlyArray<SourceFile>, prepends?: ReadonlyArray<UnparsedSource | InputFiles>): Bundle;
    function createUnparsedSourceFile(text: string): UnparsedSource;
    function createUnparsedSourceFile(inputFile: InputFiles, type: "js" | "dts", stripInternal?: boolean): UnparsedSource;
    function createUnparsedSourceFile(text: string, mapPath: string | undefined, map: string | undefined): UnparsedSource;
    function createInputFiles(javascriptText: string, declarationText: string): InputFiles;
    function createInputFiles(readFileText: (path: string) => string | undefined, javascriptPath: string, javascriptMapPath: string | undefined, declarationPath: string, declarationMapPath: string | undefined, buildInfoPath: string | undefined): InputFiles;
    function createInputFiles(javascriptText: string, declarationText: string, javascriptMapPath: string | undefined, javascriptMapText: string | undefined, declarationMapPath: string | undefined, declarationMapText: string | undefined): InputFiles;
    function updateBundle(node: Bundle, sourceFiles: ReadonlyArray<SourceFile>, prepends?: ReadonlyArray<UnparsedSource | InputFiles>): Bundle;
    function createImmediatelyInvokedFunctionExpression(statements: ReadonlyArray<Statement>): CallExpression;
    function createImmediatelyInvokedFunctionExpression(statements: ReadonlyArray<Statement>, param: ParameterDeclaration, paramValue: Expression): CallExpression;
    function createImmediatelyInvokedArrowFunction(statements: ReadonlyArray<Statement>): CallExpression;
    function createImmediatelyInvokedArrowFunction(statements: ReadonlyArray<Statement>, param: ParameterDeclaration, paramValue: Expression): CallExpression;
    function createComma(left: Expression, right: Expression): Expression;
    function createLessThan(left: Expression, right: Expression): Expression;
    function createAssignment(left: ObjectLiteralExpression | ArrayLiteralExpression, right: Expression): DestructuringAssignment;
    function createAssignment(left: Expression, right: Expression): BinaryExpression;
    function createStrictEquality(left: Expression, right: Expression): BinaryExpression;
    function createStrictInequality(left: Expression, right: Expression): BinaryExpression;
    function createAdd(left: Expression, right: Expression): BinaryExpression;
    function createSubtract(left: Expression, right: Expression): BinaryExpression;
    function createPostfixIncrement(operand: Expression): PostfixUnaryExpression;
    function createLogicalAnd(left: Expression, right: Expression): BinaryExpression;
    function createLogicalOr(left: Expression, right: Expression): BinaryExpression;
    function createLogicalNot(operand: Expression): PrefixUnaryExpression;
    function createVoidZero(): VoidExpression;
    function createExportDefault(expression: Expression): ExportAssignment;
    function createExternalModuleExport(exportName: Identifier): ExportDeclaration;
    /**
     * Clears any EmitNode entries from parse-tree nodes.
     * @param sourceFile A source file.
     */
    function disposeEmitNodes(sourceFile: SourceFile): void;
    function setTextRange<T extends TextRange>(range: T, location: TextRange | undefined): T;
    /**
     * Sets flags that control emit behavior of a node.
     */
    function setEmitFlags<T extends Node>(node: T, emitFlags: EmitFlags): T;
    /**
     * Gets a custom text range to use when emitting source maps.
     */
    function getSourceMapRange(node: Node): SourceMapRange;
    /**
     * Sets a custom text range to use when emitting source maps.
     */
    function setSourceMapRange<T extends Node>(node: T, range: SourceMapRange | undefined): T;
    /**
     * Create an external source map source file reference
     */
    function createSourceMapSource(fileName: string, text: string, skipTrivia?: (pos: number) => number): SourceMapSource;
    /**
     * Gets the TextRange to use for source maps for a token of a node.
     */
    function getTokenSourceMapRange(node: Node, token: SyntaxKind): SourceMapRange | undefined;
    /**
     * Sets the TextRange to use for source maps for a token of a node.
     */
    function setTokenSourceMapRange<T extends Node>(node: T, token: SyntaxKind, range: SourceMapRange | undefined): T;
    /**
     * Gets a custom text range to use when emitting comments.
     */
    function getCommentRange(node: Node): TextRange;
    /**
     * Sets a custom text range to use when emitting comments.
     */
    function setCommentRange<T extends Node>(node: T, range: TextRange): T;
    function getSyntheticLeadingComments(node: Node): SynthesizedComment[] | undefined;
    function setSyntheticLeadingComments<T extends Node>(node: T, comments: SynthesizedComment[] | undefined): T;
    function addSyntheticLeadingComment<T extends Node>(node: T, kind: SyntaxKind.SingleLineCommentTrivia | SyntaxKind.MultiLineCommentTrivia, text: string, hasTrailingNewLine?: boolean): T;
    function getSyntheticTrailingComments(node: Node): SynthesizedComment[] | undefined;
    function setSyntheticTrailingComments<T extends Node>(node: T, comments: SynthesizedComment[] | undefined): T;
    function addSyntheticTrailingComment<T extends Node>(node: T, kind: SyntaxKind.SingleLineCommentTrivia | SyntaxKind.MultiLineCommentTrivia, text: string, hasTrailingNewLine?: boolean): T;
    function moveSyntheticComments<T extends Node>(node: T, original: Node): T;
    /**
     * Gets the constant value to emit for an expression.
     */
    function getConstantValue(node: PropertyAccessExpression | ElementAccessExpression): string | number | undefined;
    /**
     * Sets the constant value to emit for an expression.
     */
    function setConstantValue(node: PropertyAccessExpression | ElementAccessExpression, value: string | number): PropertyAccessExpression | ElementAccessExpression;
    /**
     * Adds an EmitHelper to a node.
     */
    function addEmitHelper<T extends Node>(node: T, helper: EmitHelper): T;
    /**
     * Add EmitHelpers to a node.
     */
    function addEmitHelpers<T extends Node>(node: T, helpers: EmitHelper[] | undefined): T;
    /**
     * Removes an EmitHelper from a node.
     */
    function removeEmitHelper(node: Node, helper: EmitHelper): boolean;
    /**
     * Gets the EmitHelpers of a node.
     */
    function getEmitHelpers(node: Node): EmitHelper[] | undefined;
    /**
     * Moves matching emit helpers from a source node to a target node.
     */
    function moveEmitHelpers(source: Node, target: Node, predicate: (helper: EmitHelper) => boolean): void;
    function setOriginalNode<T extends Node>(node: T, original: Node | undefined): T;
}
declare namespace ts {
    /**
     * Visits a Node using the supplied visitor, possibly returning a new Node in its place.
     *
     * @param node The Node to visit.
     * @param visitor The callback used to visit the Node.
     * @param test A callback to execute to verify the Node is valid.
     * @param lift An optional callback to execute to lift a NodeArray into a valid Node.
     */
    function visitNode<T extends Node>(node: T | undefined, visitor: Visitor | undefined, test?: (node: Node) => boolean, lift?: (node: NodeArray<Node>) => T): T;
    /**
     * Visits a Node using the supplied visitor, possibly returning a new Node in its place.
     *
     * @param node The Node to visit.
     * @param visitor The callback used to visit the Node.
     * @param test A callback to execute to verify the Node is valid.
     * @param lift An optional callback to execute to lift a NodeArray into a valid Node.
     */
    function visitNode<T extends Node>(node: T | undefined, visitor: Visitor | undefined, test?: (node: Node) => boolean, lift?: (node: NodeArray<Node>) => T): T | undefined;
    /**
     * Visits a NodeArray using the supplied visitor, possibly returning a new NodeArray in its place.
     *
     * @param nodes The NodeArray to visit.
     * @param visitor The callback used to visit a Node.
     * @param test A node test to execute for each node.
     * @param start An optional value indicating the starting offset at which to start visiting.
     * @param count An optional value indicating the maximum number of nodes to visit.
     */
    function visitNodes<T extends Node>(nodes: NodeArray<T> | undefined, visitor: Visitor, test?: (node: Node) => boolean, start?: number, count?: number): NodeArray<T>;
    /**
     * Visits a NodeArray using the supplied visitor, possibly returning a new NodeArray in its place.
     *
     * @param nodes The NodeArray to visit.
     * @param visitor The callback used to visit a Node.
     * @param test A node test to execute for each node.
     * @param start An optional value indicating the starting offset at which to start visiting.
     * @param count An optional value indicating the maximum number of nodes to visit.
     */
    function visitNodes<T extends Node>(nodes: NodeArray<T> | undefined, visitor: Visitor, test?: (node: Node) => boolean, start?: number, count?: number): NodeArray<T> | undefined;
    /**
     * Starts a new lexical environment and visits a statement list, ending the lexical environment
     * and merging hoisted declarations upon completion.
     */
    function visitLexicalEnvironment(statements: NodeArray<Statement>, visitor: Visitor, context: TransformationContext, start?: number, ensureUseStrict?: boolean): NodeArray<Statement>;
    /**
     * Starts a new lexical environment and visits a parameter list, suspending the lexical
     * environment upon completion.
     */
    function visitParameterList(nodes: NodeArray<ParameterDeclaration> | undefined, visitor: Visitor, context: TransformationContext, nodesVisitor?: typeof visitNodes): NodeArray<ParameterDeclaration>;
    /**
     * Resumes a suspended lexical environment and visits a function body, ending the lexical
     * environment and merging hoisted declarations upon completion.
     */
    function visitFunctionBody(node: FunctionBody, visitor: Visitor, context: TransformationContext): FunctionBody;
    /**
     * Resumes a suspended lexical environment and visits a function body, ending the lexical
     * environment and merging hoisted declarations upon completion.
     */
    function visitFunctionBody(node: FunctionBody | undefined, visitor: Visitor, context: TransformationContext): FunctionBody | undefined;
    /**
     * Resumes a suspended lexical environment and visits a concise body, ending the lexical
     * environment and merging hoisted declarations upon completion.
     */
    function visitFunctionBody(node: ConciseBody, visitor: Visitor, context: TransformationContext): ConciseBody;
    /**
     * Visits each child of a Node using the supplied visitor, possibly returning a new Node of the same kind in its place.
     *
     * @param node The Node whose children will be visited.
     * @param visitor The callback used to visit each child.
     * @param context A lexical environment context for the visitor.
     */
    function visitEachChild<T extends Node>(node: T, visitor: Visitor, context: TransformationContext): T;
    /**
     * Visits each child of a Node using the supplied visitor, possibly returning a new Node of the same kind in its place.
     *
     * @param node The Node whose children will be visited.
     * @param visitor The callback used to visit each child.
     * @param context A lexical environment context for the visitor.
     */
    function visitEachChild<T extends Node>(node: T | undefined, visitor: Visitor, context: TransformationContext, nodesVisitor?: typeof visitNodes, tokenVisitor?: Visitor): T | undefined;
}
declare namespace ts {
    function createPrinter(printerOptions?: PrinterOptions, handlers?: PrintHandlers): Printer;
}
declare namespace ts {
    function findConfigFile(searchPath: string, fileExists: (fileName: string) => boolean, configName?: string): string | undefined;
    function resolveTripleslashReference(moduleName: string, containingFile: string): string;
    function createCompilerHost(options: CompilerOptions, setParentNodes?: boolean): CompilerHost;
    function getPreEmitDiagnostics(program: Program, sourceFile?: SourceFile, cancellationToken?: CancellationToken): ReadonlyArray<Diagnostic>;
    interface FormatDiagnosticsHost {
        getCurrentDirectory(): string;
        getCanonicalFileName(fileName: string): string;
        getNewLine(): string;
    }
    function formatDiagnostics(diagnostics: ReadonlyArray<Diagnostic>, host: FormatDiagnosticsHost): string;
    function formatDiagnostic(diagnostic: Diagnostic, host: FormatDiagnosticsHost): string;
    function formatDiagnosticsWithColorAndContext(diagnostics: ReadonlyArray<Diagnostic>, host: FormatDiagnosticsHost): string;
    function flattenDiagnosticMessageText(messageText: string | DiagnosticMessageChain | undefined, newLine: string): string;
    function getConfigFileParsingDiagnostics(configFileParseResult: ParsedCommandLine): ReadonlyArray<Diagnostic>;
    /**
     * Create a new 'Program' instance. A Program is an immutable collection of 'SourceFile's and a 'CompilerOptions'
     * that represent a compilation unit.
     *
     * Creating a program proceeds from a set of root files, expanding the set of inputs by following imports and
     * triple-slash-reference-path directives transitively. '@types' and triple-slash-reference-types are also pulled in.
     *
     * @param createProgramOptions - The options for creating a program.
     * @returns A 'Program' object.
     */
    function createProgram(createProgramOptions: CreateProgramOptions): Program;
    /**
     * Create a new 'Program' instance. A Program is an immutable collection of 'SourceFile's and a 'CompilerOptions'
     * that represent a compilation unit.
     *
     * Creating a program proceeds from a set of root files, expanding the set of inputs by following imports and
     * triple-slash-reference-path directives transitively. '@types' and triple-slash-reference-types are also pulled in.
     *
     * @param rootNames - A set of root files.
     * @param options - The compiler options which should be used.
     * @param host - The host interacts with the underlying file system.
     * @param oldProgram - Reuses an old program structure.
     * @param configFileParsingDiagnostics - error during config file parsing
     * @returns A 'Program' object.
     */
    function createProgram(rootNames: ReadonlyArray<string>, options: CompilerOptions, host?: CompilerHost, oldProgram?: Program, configFileParsingDiagnostics?: ReadonlyArray<Diagnostic>): Program;
    /** @deprecated */ interface ResolveProjectReferencePathHost {
        fileExists(fileName: string): boolean;
    }
    /**
     * Returns the target config filename of a project reference.
     * Note: The file might not exist.
     */
    function resolveProjectReferencePath(ref: ProjectReference): ResolvedConfigFileName;
    /** @deprecated */ function resolveProjectReferencePath(host: ResolveProjectReferencePathHost, ref: ProjectReference): ResolvedConfigFileName;
}
declare namespace ts {
    interface EmitOutput {
        outputFiles: OutputFile[];
        emitSkipped: boolean;
    }
    interface OutputFile {
        name: string;
        writeByteOrderMark: boolean;
        text: string;
    }
}
declare namespace ts {
    type AffectedFileResult<T> = {
        result: T;
        affected: SourceFile | Program;
    } | undefined;
    interface BuilderProgramHost {
        /**
         * return true if file names are treated with case sensitivity
         */
        useCaseSensitiveFileNames(): boolean;
        /**
         * If provided this would be used this hash instead of actual file shape text for detecting changes
         */
        createHash?: (data: string) => string;
        /**
         * When emit or emitNextAffectedFile are called without writeFile,
         * this callback if present would be used to write files
         */
        writeFile?: WriteFileCallback;
    }
    /**
     * Builder to manage the program state changes
     */
    interface BuilderProgram {
        /**
         * Returns current program
         */
        getProgram(): Program;
        /**
         * Get compiler options of the program
         */
        getCompilerOptions(): CompilerOptions;
        /**
         * Get the source file in the program with file name
         */
        getSourceFile(fileName: string): SourceFile | undefined;
        /**
         * Get a list of files in the program
         */
        getSourceFiles(): ReadonlyArray<SourceFile>;
        /**
         * Get the diagnostics for compiler options
         */
        getOptionsDiagnostics(cancellationToken?: CancellationToken): ReadonlyArray<Diagnostic>;
        /**
         * Get the diagnostics that dont belong to any file
         */
        getGlobalDiagnostics(cancellationToken?: CancellationToken): ReadonlyArray<Diagnostic>;
        /**
         * Get the diagnostics from config file parsing
         */
        getConfigFileParsingDiagnostics(): ReadonlyArray<Diagnostic>;
        /**
         * Get the syntax diagnostics, for all source files if source file is not supplied
         */
        getSyntacticDiagnostics(sourceFile?: SourceFile, cancellationToken?: CancellationToken): ReadonlyArray<Diagnostic>;
        /**
         * Get the declaration diagnostics, for all source files if source file is not supplied
         */
        getDeclarationDiagnostics(sourceFile?: SourceFile, cancellationToken?: CancellationToken): ReadonlyArray<DiagnosticWithLocation>;
        /**
         * Get all the dependencies of the file
         */
        getAllDependencies(sourceFile: SourceFile): ReadonlyArray<string>;
        /**
         * Gets the semantic diagnostics from the program corresponding to this state of file (if provided) or whole program
         * The semantic diagnostics are cached and managed here
         * Note that it is assumed that when asked about semantic diagnostics through this API,
         * the file has been taken out of affected files so it is safe to use cache or get from program and cache the diagnostics
         * In case of SemanticDiagnosticsBuilderProgram if the source file is not provided,
         * it will iterate through all the affected files, to ensure that cache stays valid and yet provide a way to get all semantic diagnostics
         */
        getSemanticDiagnostics(sourceFile?: SourceFile, cancellationToken?: CancellationToken): ReadonlyArray<Diagnostic>;
        /**
         * Emits the JavaScript and declaration files.
         * When targetSource file is specified, emits the files corresponding to that source file,
         * otherwise for the whole program.
         * In case of EmitAndSemanticDiagnosticsBuilderProgram, when targetSourceFile is specified,
         * it is assumed that that file is handled from affected file list. If targetSourceFile is not specified,
         * it will only emit all the affected files instead of whole program
         *
         * The first of writeFile if provided, writeFile of BuilderProgramHost if provided, writeFile of compiler host
         * in that order would be used to write the files
         */
        emit(targetSourceFile?: SourceFile, writeFile?: WriteFileCallback, cancellationToken?: CancellationToken, emitOnlyDtsFiles?: boolean, customTransformers?: CustomTransformers): EmitResult;
        /**
         * Get the current directory of the program
         */
        getCurrentDirectory(): string;
    }
    /**
     * The builder that caches the semantic diagnostics for the program and handles the changed files and affected files
     */
    interface SemanticDiagnosticsBuilderProgram extends BuilderProgram {
        /**
         * Gets the semantic diagnostics from the program for the next affected file and caches it
         * Returns undefined if the iteration is complete
         */
        getSemanticDiagnosticsOfNextAffectedFile(cancellationToken?: CancellationToken, ignoreSourceFile?: (sourceFile: SourceFile) => boolean): AffectedFileResult<ReadonlyArray<Diagnostic>>;
    }
    /**
     * The builder that can handle the changes in program and iterate through changed file to emit the files
     * The semantic diagnostics are cached per file and managed by clearing for the changed/affected files
     */
    interface EmitAndSemanticDiagnosticsBuilderProgram extends BuilderProgram {
        /**
         * Emits the next affected file's emit result (EmitResult and sourceFiles emitted) or returns undefined if iteration is complete
         * The first of writeFile if provided, writeFile of BuilderProgramHost if provided, writeFile of compiler host
         * in that order would be used to write the files
         */
        emitNextAffectedFile(writeFile?: WriteFileCallback, cancellationToken?: CancellationToken, emitOnlyDtsFiles?: boolean, customTransformers?: CustomTransformers): AffectedFileResult<EmitResult>;
    }
    /**
     * Create the builder to manage semantic diagnostics and cache them
     */
    function createSemanticDiagnosticsBuilderProgram(newProgram: Program, host: BuilderProgramHost, oldProgram?: SemanticDiagnosticsBuilderProgram, configFileParsingDiagnostics?: ReadonlyArray<Diagnostic>): SemanticDiagnosticsBuilderProgram;
    function createSemanticDiagnosticsBuilderProgram(rootNames: ReadonlyArray<string> | undefined, options: CompilerOptions | undefined, host?: CompilerHost, oldProgram?: SemanticDiagnosticsBuilderProgram, configFileParsingDiagnostics?: ReadonlyArray<Diagnostic>, projectReferences?: ReadonlyArray<ProjectReference>): SemanticDiagnosticsBuilderProgram;
    /**
     * Create the builder that can handle the changes in program and iterate through changed files
     * to emit the those files and manage semantic diagnostics cache as well
     */
    function createEmitAndSemanticDiagnosticsBuilderProgram(newProgram: Program, host: BuilderProgramHost, oldProgram?: EmitAndSemanticDiagnosticsBuilderProgram, configFileParsingDiagnostics?: ReadonlyArray<Diagnostic>): EmitAndSemanticDiagnosticsBuilderProgram;
    function createEmitAndSemanticDiagnosticsBuilderProgram(rootNames: ReadonlyArray<string> | undefined, options: CompilerOptions | undefined, host?: CompilerHost, oldProgram?: EmitAndSemanticDiagnosticsBuilderProgram, configFileParsingDiagnostics?: ReadonlyArray<Diagnostic>, projectReferences?: ReadonlyArray<ProjectReference>): EmitAndSemanticDiagnosticsBuilderProgram;
    /**
     * Creates a builder thats just abstraction over program and can be used with watch
     */
    function createAbstractBuilder(newProgram: Program, host: BuilderProgramHost, oldProgram?: BuilderProgram, configFileParsingDiagnostics?: ReadonlyArray<Diagnostic>): BuilderProgram;
    function createAbstractBuilder(rootNames: ReadonlyArray<string> | undefined, options: CompilerOptions | undefined, host?: CompilerHost, oldProgram?: BuilderProgram, configFileParsingDiagnostics?: ReadonlyArray<Diagnostic>, projectReferences?: ReadonlyArray<ProjectReference>): BuilderProgram;
}
declare namespace ts {
    type WatchStatusReporter = (diagnostic: Diagnostic, newLine: string, options: CompilerOptions) => void;
    /** Create the program with rootNames and options, if they are undefined, oldProgram and new configFile diagnostics create new program */
    type CreateProgram<T extends BuilderProgram> = (rootNames: ReadonlyArray<string> | undefined, options: CompilerOptions | undefined, host?: CompilerHost, oldProgram?: T, configFileParsingDiagnostics?: ReadonlyArray<Diagnostic>, projectReferences?: ReadonlyArray<ProjectReference> | undefined) => T;
    /** Host that has watch functionality used in --watch mode */
    interface WatchHost {
        /** If provided, called with Diagnostic message that informs about change in watch status */
        onWatchStatusChange?(diagnostic: Diagnostic, newLine: string, options: CompilerOptions): void;
        /** Used to watch changes in source files, missing files needed to update the program or config file */
        watchFile(path: string, callback: FileWatcherCallback, pollingInterval?: number): FileWatcher;
        /** Used to watch resolved module's failed lookup locations, config file specs, type roots where auto type reference directives are added */
        watchDirectory(path: string, callback: DirectoryWatcherCallback, recursive?: boolean): FileWatcher;
        /** If provided, will be used to set delayed compilation, so that multiple changes in short span are compiled together */
        setTimeout?(callback: (...args: any[]) => void, ms: number, ...args: any[]): any;
        /** If provided, will be used to reset existing delayed compilation */
        clearTimeout?(timeoutId: any): void;
    }
    interface ProgramHost<T extends BuilderProgram> {
        /**
         * Used to create the program when need for program creation or recreation detected
         */
        createProgram: CreateProgram<T>;
        useCaseSensitiveFileNames(): boolean;
        getNewLine(): string;
        getCurrentDirectory(): string;
        getDefaultLibFileName(options: CompilerOptions): string;
        getDefaultLibLocation?(): string;
        createHash?(data: string): string;
        /**
         * Use to check file presence for source files and
         * if resolveModuleNames is not provided (complier is in charge of module resolution) then module files as well
         */
        fileExists(path: string): boolean;
        /**
         * Use to read file text for source files and
         * if resolveModuleNames is not provided (complier is in charge of module resolution) then module files as well
         */
        readFile(path: string, encoding?: string): string | undefined;
        /** If provided, used for module resolution as well as to handle directory structure */
        directoryExists?(path: string): boolean;
        /** If provided, used in resolutions as well as handling directory structure */
        getDirectories?(path: string): string[];
        /** If provided, used to cache and handle directory structure modifications */
        readDirectory?(path: string, extensions?: ReadonlyArray<string>, exclude?: ReadonlyArray<string>, include?: ReadonlyArray<string>, depth?: number): string[];
        /** Symbol links resolution */
        realpath?(path: string): string;
        /** If provided would be used to write log about compilation */
        trace?(s: string): void;
        /** If provided is used to get the environment variable */
        getEnvironmentVariable?(name: string): string | undefined;
        /** If provided, used to resolve the module names, otherwise typescript's default module resolution */
        resolveModuleNames?(moduleNames: string[], containingFile: string, reusedNames?: string[], redirectedReference?: ResolvedProjectReference): (ResolvedModule | undefined)[];
        /** If provided, used to resolve type reference directives, otherwise typescript's default resolution */
        resolveTypeReferenceDirectives?(typeReferenceDirectiveNames: string[], containingFile: string, redirectedReference?: ResolvedProjectReference): (ResolvedTypeReferenceDirective | undefined)[];
    }
    interface WatchCompilerHost<T extends BuilderProgram> extends ProgramHost<T>, WatchHost {
        /** If provided, callback to invoke after every new program creation */
        afterProgramCreate?(program: T): void;
    }
    /**
     * Host to create watch with root files and options
     */
    interface WatchCompilerHostOfFilesAndCompilerOptions<T extends BuilderProgram> extends WatchCompilerHost<T> {
        /** root files to use to generate program */
        rootFiles: string[];
        /** Compiler options */
        options: CompilerOptions;
        /** Project References */
        projectReferences?: ReadonlyArray<ProjectReference>;
    }
    /**
     * Host to create watch with config file
     */
    interface WatchCompilerHostOfConfigFile<T extends BuilderProgram> extends WatchCompilerHost<T>, ConfigFileDiagnosticsReporter {
        /** Name of the config file to compile */
        configFileName: string;
        /** Options to extend */
        optionsToExtend?: CompilerOptions;
        /**
         * Used to generate source file names from the config file and its include, exclude, files rules
         * and also to cache the directory stucture
         */
        readDirectory(path: string, extensions?: ReadonlyArray<string>, exclude?: ReadonlyArray<string>, include?: ReadonlyArray<string>, depth?: number): string[];
    }
    interface Watch<T> {
        /** Synchronize with host and get updated program */
        getProgram(): T;
    }
    /**
     * Creates the watch what generates program using the config file
     */
    interface WatchOfConfigFile<T> extends Watch<T> {
    }
    /**
     * Creates the watch that generates program using the root files and compiler options
     */
    interface WatchOfFilesAndCompilerOptions<T> extends Watch<T> {
        /** Updates the root files in the program, only if this is not config file compilation */
        updateRootFileNames(fileNames: string[]): void;
    }
    /**
     * Create the watch compiler host for either configFile or fileNames and its options
     */
    function createWatchCompilerHost<T extends BuilderProgram>(configFileName: string, optionsToExtend: CompilerOptions | undefined, system: System, createProgram?: CreateProgram<T>, reportDiagnostic?: DiagnosticReporter, reportWatchStatus?: WatchStatusReporter): WatchCompilerHostOfConfigFile<T>;
    function createWatchCompilerHost<T extends BuilderProgram>(rootFiles: string[], options: CompilerOptions, system: System, createProgram?: CreateProgram<T>, reportDiagnostic?: DiagnosticReporter, reportWatchStatus?: WatchStatusReporter, projectReferences?: ReadonlyArray<ProjectReference>): WatchCompilerHostOfFilesAndCompilerOptions<T>;
    /**
     * Creates the watch from the host for root files and compiler options
     */
    function createWatchProgram<T extends BuilderProgram>(host: WatchCompilerHostOfFilesAndCompilerOptions<T>): WatchOfFilesAndCompilerOptions<T>;
    /**
     * Creates the watch from the host for config file
     */
    function createWatchProgram<T extends BuilderProgram>(host: WatchCompilerHostOfConfigFile<T>): WatchOfConfigFile<T>;
}
declare namespace ts.server {
    type ActionSet = "action::set";
    type ActionInvalidate = "action::invalidate";
    type ActionPackageInstalled = "action::packageInstalled";
    type EventTypesRegistry = "event::typesRegistry";
    type EventBeginInstallTypes = "event::beginInstallTypes";
    type EventEndInstallTypes = "event::endInstallTypes";
    type EventInitializationFailed = "event::initializationFailed";
    interface TypingInstallerResponse {
        readonly kind: ActionSet | ActionInvalidate | EventTypesRegistry | ActionPackageInstalled | EventBeginInstallTypes | EventEndInstallTypes | EventInitializationFailed;
    }
    interface TypingInstallerRequestWithProjectName {
        readonly projectName: string;
    }
    interface DiscoverTypings extends TypingInstallerRequestWithProjectName {
        readonly fileNames: string[];
        readonly projectRootPath: Path;
        readonly compilerOptions: CompilerOptions;
        readonly typeAcquisition: TypeAcquisition;
        readonly unresolvedImports: SortedReadonlyArray<string>;
        readonly cachePath?: string;
        readonly kind: "discover";
    }
    interface CloseProject extends TypingInstallerRequestWithProjectName {
        readonly kind: "closeProject";
    }
    interface TypesRegistryRequest {
        readonly kind: "typesRegistry";
    }
    interface InstallPackageRequest extends TypingInstallerRequestWithProjectName {
        readonly kind: "installPackage";
        readonly fileName: Path;
        readonly packageName: string;
        readonly projectRootPath: Path;
    }
    interface PackageInstalledResponse extends ProjectResponse {
        readonly kind: ActionPackageInstalled;
        readonly success: boolean;
        readonly message: string;
    }
    interface InitializationFailedResponse extends TypingInstallerResponse {
        readonly kind: EventInitializationFailed;
        readonly message: string;
    }
    interface ProjectResponse extends TypingInstallerResponse {
        readonly projectName: string;
    }
    interface InvalidateCachedTypings extends ProjectResponse {
        readonly kind: ActionInvalidate;
    }
    interface InstallTypes extends ProjectResponse {
        readonly kind: EventBeginInstallTypes | EventEndInstallTypes;
        readonly eventId: number;
        readonly typingsInstallerVersion: string;
        readonly packagesToInstall: ReadonlyArray<string>;
    }
    interface BeginInstallTypes extends InstallTypes {
        readonly kind: EventBeginInstallTypes;
    }
    interface EndInstallTypes extends InstallTypes {
        readonly kind: EventEndInstallTypes;
        readonly installSuccess: boolean;
    }
    interface SetTypings extends ProjectResponse {
        readonly typeAcquisition: TypeAcquisition;
        readonly compilerOptions: CompilerOptions;
        readonly typings: string[];
        readonly unresolvedImports: SortedReadonlyArray<string>;
        readonly kind: ActionSet;
    }
}
declare namespace ts {
    interface Node {
        getSourceFile(): SourceFile;
        getChildCount(sourceFile?: SourceFile): number;
        getChildAt(index: number, sourceFile?: SourceFile): Node;
        getChildren(sourceFile?: SourceFile): Node[];
        getStart(sourceFile?: SourceFile, includeJsDocComment?: boolean): number;
        getFullStart(): number;
        getEnd(): number;
        getWidth(sourceFile?: SourceFileLike): number;
        getFullWidth(): number;
        getLeadingTriviaWidth(sourceFile?: SourceFile): number;
        getFullText(sourceFile?: SourceFile): string;
        getText(sourceFile?: SourceFile): string;
        getFirstToken(sourceFile?: SourceFile): Node | undefined;
        getLastToken(sourceFile?: SourceFile): Node | undefined;
        forEachChild<T>(cbNode: (node: Node) => T | undefined, cbNodeArray?: (nodes: NodeArray<Node>) => T | undefined): T | undefined;
    }
    interface Identifier {
        readonly text: string;
    }
    interface Symbol {
        readonly name: string;
        getFlags(): SymbolFlags;
        getEscapedName(): __String;
        getName(): string;
        getDeclarations(): Declaration[] | undefined;
        getDocumentationComment(typeChecker: TypeChecker | undefined): SymbolDisplayPart[];
        getJsDocTags(): JSDocTagInfo[];
    }
    interface Type {
        getFlags(): TypeFlags;
        getSymbol(): Symbol | undefined;
        getProperties(): Symbol[];
        getProperty(propertyName: string): Symbol | undefined;
        getApparentProperties(): Symbol[];
        getCallSignatures(): ReadonlyArray<Signature>;
        getConstructSignatures(): ReadonlyArray<Signature>;
        getStringIndexType(): Type | undefined;
        getNumberIndexType(): Type | undefined;
        getBaseTypes(): BaseType[] | undefined;
        getNonNullableType(): Type;
        getConstraint(): Type | undefined;
        getDefault(): Type | undefined;
        isUnion(): this is UnionType;
        isIntersection(): this is IntersectionType;
        isUnionOrIntersection(): this is UnionOrIntersectionType;
        isLiteral(): this is LiteralType;
        isStringLiteral(): this is StringLiteralType;
        isNumberLiteral(): this is NumberLiteralType;
        isTypeParameter(): this is TypeParameter;
        isClassOrInterface(): this is InterfaceType;
        isClass(): this is InterfaceType;
    }
    interface Signature {
        getDeclaration(): SignatureDeclaration;
        getTypeParameters(): TypeParameter[] | undefined;
        getParameters(): Symbol[];
        getReturnType(): Type;
        getDocumentationComment(typeChecker: TypeChecker | undefined): SymbolDisplayPart[];
        getJsDocTags(): JSDocTagInfo[];
    }
    interface SourceFile {
        getLineAndCharacterOfPosition(pos: number): LineAndCharacter;
        getLineEndOfPosition(pos: number): number;
        getLineStarts(): ReadonlyArray<number>;
        getPositionOfLineAndCharacter(line: number, character: number): number;
        update(newText: string, textChangeRange: TextChangeRange): SourceFile;
    }
    interface SourceFileLike {
        getLineAndCharacterOfPosition(pos: number): LineAndCharacter;
    }
    interface SourceMapSource {
        getLineAndCharacterOfPosition(pos: number): LineAndCharacter;
    }
    /**
     * Represents an immutable snapshot of a script at a specified time.Once acquired, the
     * snapshot is observably immutable. i.e. the same calls with the same parameters will return
     * the same values.
     */
    interface IScriptSnapshot {
        /** Gets a portion of the script snapshot specified by [start, end). */
        getText(start: number, end: number): string;
        /** Gets the length of this script snapshot. */
        getLength(): number;
        /**
         * Gets the TextChangeRange that describe how the text changed between this text and
         * an older version.  This information is used by the incremental parser to determine
         * what sections of the script need to be re-parsed.  'undefined' can be returned if the
         * change range cannot be determined.  However, in that case, incremental parsing will
         * not happen and the entire document will be re - parsed.
         */
        getChangeRange(oldSnapshot: IScriptSnapshot): TextChangeRange | undefined;
        /** Releases all resources held by this script snapshot */
        dispose?(): void;
    }
    namespace ScriptSnapshot {
        function fromString(text: string): IScriptSnapshot;
    }
    interface PreProcessedFileInfo {
        referencedFiles: FileReference[];
        typeReferenceDirectives: FileReference[];
        libReferenceDirectives: FileReference[];
        importedFiles: FileReference[];
        ambientExternalModules?: string[];
        isLibFile: boolean;
    }
    interface HostCancellationToken {
        isCancellationRequested(): boolean;
    }
    interface InstallPackageOptions {
        fileName: Path;
        packageName: string;
    }
    interface LanguageServiceHost extends GetEffectiveTypeRootsHost {
        getCompilationSettings(): CompilerOptions;
        getNewLine?(): string;
        getProjectVersion?(): string;
        getScriptFileNames(): string[];
        getScriptKind?(fileName: string): ScriptKind;
        getScriptVersion(fileName: string): string;
        getScriptSnapshot(fileName: string): IScriptSnapshot | undefined;
        getProjectReferences?(): ReadonlyArray<ProjectReference> | undefined;
        getLocalizedDiagnosticMessages?(): any;
        getCancellationToken?(): HostCancellationToken;
        getCurrentDirectory(): string;
        getDefaultLibFileName(options: CompilerOptions): string;
        log?(s: string): void;
        trace?(s: string): void;
        error?(s: string): void;
        useCaseSensitiveFileNames?(): boolean;
        readDirectory?(path: string, extensions?: ReadonlyArray<string>, exclude?: ReadonlyArray<string>, include?: ReadonlyArray<string>, depth?: number): string[];
        readFile?(path: string, encoding?: string): string | undefined;
        realpath?(path: string): string;
        fileExists?(path: string): boolean;
        getTypeRootsVersion?(): number;
        resolveModuleNames?(moduleNames: string[], containingFile: string, reusedNames?: string[], redirectedReference?: ResolvedProjectReference): (ResolvedModule | undefined)[];
        getResolvedModuleWithFailedLookupLocationsFromCache?(modulename: string, containingFile: string): ResolvedModuleWithFailedLookupLocations | undefined;
        resolveTypeReferenceDirectives?(typeDirectiveNames: string[], containingFile: string, redirectedReference?: ResolvedProjectReference): (ResolvedTypeReferenceDirective | undefined)[];
        getDirectories?(directoryName: string): string[];
        /**
         * Gets a set of custom transformers to use during emit.
         */
        getCustomTransformers?(): CustomTransformers | undefined;
        isKnownTypesPackageName?(name: string): boolean;
        installPackage?(options: InstallPackageOptions): Promise<ApplyCodeActionCommandResult>;
        writeFile?(fileName: string, content: string): void;
    }
    type WithMetadata<T> = T & {
        metadata?: unknown;
    };
    interface LanguageService {
        cleanupSemanticCache(): void;
        getSyntacticDiagnostics(fileName: string): DiagnosticWithLocation[];
        /** The first time this is called, it will return global diagnostics (no location). */
        getSemanticDiagnostics(fileName: string): Diagnostic[];
        getSuggestionDiagnostics(fileName: string): DiagnosticWithLocation[];
        getCompilerOptionsDiagnostics(): Diagnostic[];
        /**
         * @deprecated Use getEncodedSyntacticClassifications instead.
         */
        getSyntacticClassifications(fileName: string, span: TextSpan): ClassifiedSpan[];
        /**
         * @deprecated Use getEncodedSemanticClassifications instead.
         */
        getSemanticClassifications(fileName: string, span: TextSpan): ClassifiedSpan[];
        getEncodedSyntacticClassifications(fileName: string, span: TextSpan): Classifications;
        getEncodedSemanticClassifications(fileName: string, span: TextSpan): Classifications;
        getCompletionsAtPosition(fileName: string, position: number, options: GetCompletionsAtPositionOptions | undefined): WithMetadata<CompletionInfo> | undefined;
        getCompletionEntryDetails(fileName: string, position: number, name: string, formatOptions: FormatCodeOptions | FormatCodeSettings | undefined, source: string | undefined, preferences: UserPreferences | undefined): CompletionEntryDetails | undefined;
        getCompletionEntrySymbol(fileName: string, position: number, name: string, source: string | undefined): Symbol | undefined;
        getQuickInfoAtPosition(fileName: string, position: number): QuickInfo | undefined;
        getNameOrDottedNameSpan(fileName: string, startPos: number, endPos: number): TextSpan | undefined;
        getBreakpointStatementAtPosition(fileName: string, position: number): TextSpan | undefined;
        getSignatureHelpItems(fileName: string, position: number, options: SignatureHelpItemsOptions | undefined): SignatureHelpItems | undefined;
        getRenameInfo(fileName: string, position: number, options?: RenameInfoOptions): RenameInfo;
        findRenameLocations(fileName: string, position: number, findInStrings: boolean, findInComments: boolean, providePrefixAndSuffixTextForRename?: boolean): ReadonlyArray<RenameLocation> | undefined;
        getSmartSelectionRange(fileName: string, position: number): SelectionRange;
        getDefinitionAtPosition(fileName: string, position: number): ReadonlyArray<DefinitionInfo> | undefined;
        getDefinitionAndBoundSpan(fileName: string, position: number): DefinitionInfoAndBoundSpan | undefined;
        getTypeDefinitionAtPosition(fileName: string, position: number): ReadonlyArray<DefinitionInfo> | undefined;
        getImplementationAtPosition(fileName: string, position: number): ReadonlyArray<ImplementationLocation> | undefined;
        getReferencesAtPosition(fileName: string, position: number): ReferenceEntry[] | undefined;
        findReferences(fileName: string, position: number): ReferencedSymbol[] | undefined;
        getDocumentHighlights(fileName: string, position: number, filesToSearch: string[]): DocumentHighlights[] | undefined;
        /** @deprecated */
        getOccurrencesAtPosition(fileName: string, position: number): ReadonlyArray<ReferenceEntry> | undefined;
        getNavigateToItems(searchValue: string, maxResultCount?: number, fileName?: string, excludeDtsFiles?: boolean): NavigateToItem[];
        getNavigationBarItems(fileName: string): NavigationBarItem[];
        getNavigationTree(fileName: string): NavigationTree;
        getOutliningSpans(fileName: string): OutliningSpan[];
        getTodoComments(fileName: string, descriptors: TodoCommentDescriptor[]): TodoComment[];
        getBraceMatchingAtPosition(fileName: string, position: number): TextSpan[];
        getIndentationAtPosition(fileName: string, position: number, options: EditorOptions | EditorSettings): number;
        getFormattingEditsForRange(fileName: string, start: number, end: number, options: FormatCodeOptions | FormatCodeSettings): TextChange[];
        getFormattingEditsForDocument(fileName: string, options: FormatCodeOptions | FormatCodeSettings): TextChange[];
        getFormattingEditsAfterKeystroke(fileName: string, position: number, key: string, options: FormatCodeOptions | FormatCodeSettings): TextChange[];
        getDocCommentTemplateAtPosition(fileName: string, position: number): TextInsertion | undefined;
        isValidBraceCompletionAtPosition(fileName: string, position: number, openingBrace: number): boolean;
        /**
         * This will return a defined result if the position is after the `>` of the opening tag, or somewhere in the text, of a JSXElement with no closing tag.
         * Editors should call this after `>` is typed.
         */
        getJsxClosingTagAtPosition(fileName: string, position: number): JsxClosingTagInfo | undefined;
        getSpanOfEnclosingComment(fileName: string, position: number, onlyMultiLine: boolean): TextSpan | undefined;
        toLineColumnOffset?(fileName: string, position: number): LineAndCharacter;
        getCodeFixesAtPosition(fileName: string, start: number, end: number, errorCodes: ReadonlyArray<number>, formatOptions: FormatCodeSettings, preferences: UserPreferences): ReadonlyArray<CodeFixAction>;
        getCombinedCodeFix(scope: CombinedCodeFixScope, fixId: {}, formatOptions: FormatCodeSettings, preferences: UserPreferences): CombinedCodeActions;
        applyCodeActionCommand(action: CodeActionCommand, formatSettings?: FormatCodeSettings): Promise<ApplyCodeActionCommandResult>;
        applyCodeActionCommand(action: CodeActionCommand[], formatSettings?: FormatCodeSettings): Promise<ApplyCodeActionCommandResult[]>;
        applyCodeActionCommand(action: CodeActionCommand | CodeActionCommand[], formatSettings?: FormatCodeSettings): Promise<ApplyCodeActionCommandResult | ApplyCodeActionCommandResult[]>;
        /** @deprecated `fileName` will be ignored */
        applyCodeActionCommand(fileName: string, action: CodeActionCommand): Promise<ApplyCodeActionCommandResult>;
        /** @deprecated `fileName` will be ignored */
        applyCodeActionCommand(fileName: string, action: CodeActionCommand[]): Promise<ApplyCodeActionCommandResult[]>;
        /** @deprecated `fileName` will be ignored */
        applyCodeActionCommand(fileName: string, action: CodeActionCommand | CodeActionCommand[]): Promise<ApplyCodeActionCommandResult | ApplyCodeActionCommandResult[]>;
        getApplicableRefactors(fileName: string, positionOrRange: number | TextRange, preferences: UserPreferences | undefined): ApplicableRefactorInfo[];
        getEditsForRefactor(fileName: string, formatOptions: FormatCodeSettings, positionOrRange: number | TextRange, refactorName: string, actionName: string, preferences: UserPreferences | undefined): RefactorEditInfo | undefined;
        organizeImports(scope: OrganizeImportsScope, formatOptions: FormatCodeSettings, preferences: UserPreferences | undefined): ReadonlyArray<FileTextChanges>;
        getEditsForFileRename(oldFilePath: string, newFilePath: string, formatOptions: FormatCodeSettings, preferences: UserPreferences | undefined): ReadonlyArray<FileTextChanges>;
        getEmitOutput(fileName: string, emitOnlyDtsFiles?: boolean): EmitOutput;
        getProgram(): Program | undefined;
        dispose(): void;
    }
    interface JsxClosingTagInfo {
        readonly newText: string;
    }
    interface CombinedCodeFixScope {
        type: "file";
        fileName: string;
    }
    type OrganizeImportsScope = CombinedCodeFixScope;
    type CompletionsTriggerCharacter = "." | '"' | "'" | "`" | "/" | "@" | "<";
    interface GetCompletionsAtPositionOptions extends UserPreferences {
        /**
         * If the editor is asking for completions because a certain character was typed
         * (as opposed to when the user explicitly requested them) this should be set.
         */
        triggerCharacter?: CompletionsTriggerCharacter;
        /** @deprecated Use includeCompletionsForModuleExports */
        includeExternalModuleExports?: boolean;
        /** @deprecated Use includeCompletionsWithInsertText */
        includeInsertTextCompletions?: boolean;
    }
    type SignatureHelpTriggerCharacter = "," | "(" | "<";
    type SignatureHelpRetriggerCharacter = SignatureHelpTriggerCharacter | ")";
    interface SignatureHelpItemsOptions {
        triggerReason?: SignatureHelpTriggerReason;
    }
    type SignatureHelpTriggerReason = SignatureHelpInvokedReason | SignatureHelpCharacterTypedReason | SignatureHelpRetriggeredReason;
    /**
     * Signals that the user manually requested signature help.
     * The language service will unconditionally attempt to provide a result.
     */
    interface SignatureHelpInvokedReason {
        kind: "invoked";
        triggerCharacter?: undefined;
    }
    /**
     * Signals that the signature help request came from a user typing a character.
     * Depending on the character and the syntactic context, the request may or may not be served a result.
     */
    interface SignatureHelpCharacterTypedReason {
        kind: "characterTyped";
        /**
         * Character that was responsible for triggering signature help.
         */
        triggerCharacter: SignatureHelpTriggerCharacter;
    }
    /**
     * Signals that this signature help request came from typing a character or moving the cursor.
     * This should only occur if a signature help session was already active and the editor needs to see if it should adjust.
     * The language service will unconditionally attempt to provide a result.
     * `triggerCharacter` can be `undefined` for a retrigger caused by a cursor move.
     */
    interface SignatureHelpRetriggeredReason {
        kind: "retrigger";
        /**
         * Character that was responsible for triggering signature help.
         */
        triggerCharacter?: SignatureHelpRetriggerCharacter;
    }
    interface ApplyCodeActionCommandResult {
        successMessage: string;
    }
    interface Classifications {
        spans: number[];
        endOfLineState: EndOfLineState;
    }
    interface ClassifiedSpan {
        textSpan: TextSpan;
        classificationType: ClassificationTypeNames;
    }
    /**
     * Navigation bar interface designed for visual studio's dual-column layout.
     * This does not form a proper tree.
     * The navbar is returned as a list of top-level items, each of which has a list of child items.
     * Child items always have an empty array for their `childItems`.
     */
    interface NavigationBarItem {
        text: string;
        kind: ScriptElementKind;
        kindModifiers: string;
        spans: TextSpan[];
        childItems: NavigationBarItem[];
        indent: number;
        bolded: boolean;
        grayed: boolean;
    }
    /**
     * Node in a tree of nested declarations in a file.
     * The top node is always a script or module node.
     */
    interface NavigationTree {
        /** Name of the declaration, or a short description, e.g. "<class>". */
        text: string;
        kind: ScriptElementKind;
        /** ScriptElementKindModifier separated by commas, e.g. "public,abstract" */
        kindModifiers: string;
        /**
         * Spans of the nodes that generated this declaration.
         * There will be more than one if this is the result of merging.
         */
        spans: TextSpan[];
        nameSpan: TextSpan | undefined;
        /** Present if non-empty */
        childItems?: NavigationTree[];
    }
    interface TodoCommentDescriptor {
        text: string;
        priority: number;
    }
    interface TodoComment {
        descriptor: TodoCommentDescriptor;
        message: string;
        position: number;
    }
    interface TextChange {
        span: TextSpan;
        newText: string;
    }
    interface FileTextChanges {
        fileName: string;
        textChanges: TextChange[];
        isNewFile?: boolean;
    }
    interface CodeAction {
        /** Description of the code action to display in the UI of the editor */
        description: string;
        /** Text changes to apply to each file as part of the code action */
        changes: FileTextChanges[];
        /**
         * If the user accepts the code fix, the editor should send the action back in a `applyAction` request.
         * This allows the language service to have side effects (e.g. installing dependencies) upon a code fix.
         */
        commands?: CodeActionCommand[];
    }
    interface CodeFixAction extends CodeAction {
        /** Short name to identify the fix, for use by telemetry. */
        fixName: string;
        /**
         * If present, one may call 'getCombinedCodeFix' with this fixId.
         * This may be omitted to indicate that the code fix can't be applied in a group.
         */
        fixId?: {};
        fixAllDescription?: string;
    }
    interface CombinedCodeActions {
        changes: ReadonlyArray<FileTextChanges>;
        commands?: ReadonlyArray<CodeActionCommand>;
    }
    type CodeActionCommand = InstallPackageAction;
    interface InstallPackageAction {
    }
    /**
     * A set of one or more available refactoring actions, grouped under a parent refactoring.
     */
    interface ApplicableRefactorInfo {
        /**
         * The programmatic name of the refactoring
         */
        name: string;
        /**
         * A description of this refactoring category to show to the user.
         * If the refactoring gets inlined (see below), this text will not be visible.
         */
        description: string;
        /**
         * Inlineable refactorings can have their actions hoisted out to the top level
         * of a context menu. Non-inlineanable refactorings should always be shown inside
         * their parent grouping.
         *
         * If not specified, this value is assumed to be 'true'
         */
        inlineable?: boolean;
        actions: RefactorActionInfo[];
    }
    /**
     * Represents a single refactoring action - for example, the "Extract Method..." refactor might
     * offer several actions, each corresponding to a surround class or closure to extract into.
     */
    interface RefactorActionInfo {
        /**
         * The programmatic name of the refactoring action
         */
        name: string;
        /**
         * A description of this refactoring action to show to the user.
         * If the parent refactoring is inlined away, this will be the only text shown,
         * so this description should make sense by itself if the parent is inlineable=true
         */
        description: string;
    }
    /**
     * A set of edits to make in response to a refactor action, plus an optional
     * location where renaming should be invoked from
     */
    interface RefactorEditInfo {
        edits: FileTextChanges[];
        renameFilename?: string;
        renameLocation?: number;
        commands?: CodeActionCommand[];
    }
    interface TextInsertion {
        newText: string;
        /** The position in newText the caret should point to after the insertion. */
        caretOffset: number;
    }
    interface DocumentSpan {
        textSpan: TextSpan;
        fileName: string;
        /**
         * If the span represents a location that was remapped (e.g. via a .d.ts.map file),
         * then the original filename and span will be specified here
         */
        originalTextSpan?: TextSpan;
        originalFileName?: string;
    }
    interface RenameLocation extends DocumentSpan {
        readonly prefixText?: string;
        readonly suffixText?: string;
    }
    interface ReferenceEntry extends DocumentSpan {
        isWriteAccess: boolean;
        isDefinition: boolean;
        isInString?: true;
    }
    interface ImplementationLocation extends DocumentSpan {
        kind: ScriptElementKind;
        displayParts: SymbolDisplayPart[];
    }
    interface DocumentHighlights {
        fileName: string;
        highlightSpans: HighlightSpan[];
    }
    enum HighlightSpanKind {
        none = "none",
        definition = "definition",
        reference = "reference",
        writtenReference = "writtenReference"
    }
    interface HighlightSpan {
        fileName?: string;
        isInString?: true;
        textSpan: TextSpan;
        kind: HighlightSpanKind;
    }
    interface NavigateToItem {
        name: string;
        kind: ScriptElementKind;
        kindModifiers: string;
        matchKind: "exact" | "prefix" | "substring" | "camelCase";
        isCaseSensitive: boolean;
        fileName: string;
        textSpan: TextSpan;
        containerName: string;
        containerKind: ScriptElementKind;
    }
    enum IndentStyle {
        None = 0,
        Block = 1,
        Smart = 2
    }
    interface EditorOptions {
        BaseIndentSize?: number;
        IndentSize: number;
        TabSize: number;
        NewLineCharacter: string;
        ConvertTabsToSpaces: boolean;
        IndentStyle: IndentStyle;
    }
    interface EditorSettings {
        baseIndentSize?: number;
        indentSize?: number;
        tabSize?: number;
        newLineCharacter?: string;
        convertTabsToSpaces?: boolean;
        indentStyle?: IndentStyle;
    }
    interface FormatCodeOptions extends EditorOptions {
        InsertSpaceAfterCommaDelimiter: boolean;
        InsertSpaceAfterSemicolonInForStatements: boolean;
        InsertSpaceBeforeAndAfterBinaryOperators: boolean;
        InsertSpaceAfterConstructor?: boolean;
        InsertSpaceAfterKeywordsInControlFlowStatements: boolean;
        InsertSpaceAfterFunctionKeywordForAnonymousFunctions: boolean;
        InsertSpaceAfterOpeningAndBeforeClosingNonemptyParenthesis: boolean;
        InsertSpaceAfterOpeningAndBeforeClosingNonemptyBrackets: boolean;
        InsertSpaceAfterOpeningAndBeforeClosingNonemptyBraces?: boolean;
        InsertSpaceAfterOpeningAndBeforeClosingTemplateStringBraces: boolean;
        InsertSpaceAfterOpeningAndBeforeClosingJsxExpressionBraces?: boolean;
        InsertSpaceAfterTypeAssertion?: boolean;
        InsertSpaceBeforeFunctionParenthesis?: boolean;
        PlaceOpenBraceOnNewLineForFunctions: boolean;
        PlaceOpenBraceOnNewLineForControlBlocks: boolean;
        insertSpaceBeforeTypeAnnotation?: boolean;
    }
    interface FormatCodeSettings extends EditorSettings {
        readonly insertSpaceAfterCommaDelimiter?: boolean;
        readonly insertSpaceAfterSemicolonInForStatements?: boolean;
        readonly insertSpaceBeforeAndAfterBinaryOperators?: boolean;
        readonly insertSpaceAfterConstructor?: boolean;
        readonly insertSpaceAfterKeywordsInControlFlowStatements?: boolean;
        readonly insertSpaceAfterFunctionKeywordForAnonymousFunctions?: boolean;
        readonly insertSpaceAfterOpeningAndBeforeClosingNonemptyParenthesis?: boolean;
        readonly insertSpaceAfterOpeningAndBeforeClosingNonemptyBrackets?: boolean;
        readonly insertSpaceAfterOpeningAndBeforeClosingNonemptyBraces?: boolean;
        readonly insertSpaceAfterOpeningAndBeforeClosingTemplateStringBraces?: boolean;
        readonly insertSpaceAfterOpeningAndBeforeClosingJsxExpressionBraces?: boolean;
        readonly insertSpaceAfterTypeAssertion?: boolean;
        readonly insertSpaceBeforeFunctionParenthesis?: boolean;
        readonly placeOpenBraceOnNewLineForFunctions?: boolean;
        readonly placeOpenBraceOnNewLineForControlBlocks?: boolean;
        readonly insertSpaceBeforeTypeAnnotation?: boolean;
        readonly indentMultiLineObjectLiteralBeginningOnBlankLine?: boolean;
    }
    function getDefaultFormatCodeSettings(newLineCharacter?: string): FormatCodeSettings;
    interface DefinitionInfo extends DocumentSpan {
        kind: ScriptElementKind;
        name: string;
        containerKind: ScriptElementKind;
        containerName: string;
    }
    interface DefinitionInfoAndBoundSpan {
        definitions?: ReadonlyArray<DefinitionInfo>;
        textSpan: TextSpan;
    }
    interface ReferencedSymbolDefinitionInfo extends DefinitionInfo {
        displayParts: SymbolDisplayPart[];
    }
    interface ReferencedSymbol {
        definition: ReferencedSymbolDefinitionInfo;
        references: ReferenceEntry[];
    }
    enum SymbolDisplayPartKind {
        aliasName = 0,
        className = 1,
        enumName = 2,
        fieldName = 3,
        interfaceName = 4,
        keyword = 5,
        lineBreak = 6,
        numericLiteral = 7,
        stringLiteral = 8,
        localName = 9,
        methodName = 10,
        moduleName = 11,
        operator = 12,
        parameterName = 13,
        propertyName = 14,
        punctuation = 15,
        space = 16,
        text = 17,
        typeParameterName = 18,
        enumMemberName = 19,
        functionName = 20,
        regularExpressionLiteral = 21
    }
    interface SymbolDisplayPart {
        text: string;
        kind: string;
    }
    interface JSDocTagInfo {
        name: string;
        text?: string;
    }
    interface QuickInfo {
        kind: ScriptElementKind;
        kindModifiers: string;
        textSpan: TextSpan;
        displayParts?: SymbolDisplayPart[];
        documentation?: SymbolDisplayPart[];
        tags?: JSDocTagInfo[];
    }
    type RenameInfo = RenameInfoSuccess | RenameInfoFailure;
    interface RenameInfoSuccess {
        canRename: true;
        /**
         * File or directory to rename.
         * If set, `getEditsForFileRename` should be called instead of `findRenameLocations`.
         */
        fileToRename?: string;
        displayName: string;
        fullDisplayName: string;
        kind: ScriptElementKind;
        kindModifiers: string;
        triggerSpan: TextSpan;
    }
    interface RenameInfoFailure {
        canRename: false;
        localizedErrorMessage: string;
    }
    interface RenameInfoOptions {
        readonly allowRenameOfImportPath?: boolean;
    }
    interface SignatureHelpParameter {
        name: string;
        documentation: SymbolDisplayPart[];
        displayParts: SymbolDisplayPart[];
        isOptional: boolean;
    }
    interface SelectionRange {
        textSpan: TextSpan;
        parent?: SelectionRange;
    }
    /**
     * Represents a single signature to show in signature help.
     * The id is used for subsequent calls into the language service to ask questions about the
     * signature help item in the context of any documents that have been updated.  i.e. after
     * an edit has happened, while signature help is still active, the host can ask important
     * questions like 'what parameter is the user currently contained within?'.
     */
    interface SignatureHelpItem {
        isVariadic: boolean;
        prefixDisplayParts: SymbolDisplayPart[];
        suffixDisplayParts: SymbolDisplayPart[];
        separatorDisplayParts: SymbolDisplayPart[];
        parameters: SignatureHelpParameter[];
        documentation: SymbolDisplayPart[];
        tags: JSDocTagInfo[];
    }
    /**
     * Represents a set of signature help items, and the preferred item that should be selected.
     */
    interface SignatureHelpItems {
        items: SignatureHelpItem[];
        applicableSpan: TextSpan;
        selectedItemIndex: number;
        argumentIndex: number;
        argumentCount: number;
    }
    interface CompletionInfo {
        /** Not true for all glboal completions. This will be true if the enclosing scope matches a few syntax kinds. See `isSnippetScope`. */
        isGlobalCompletion: boolean;
        isMemberCompletion: boolean;
        /**
         * true when the current location also allows for a new identifier
         */
        isNewIdentifierLocation: boolean;
        entries: CompletionEntry[];
    }
    interface CompletionEntry {
        name: string;
        kind: ScriptElementKind;
        kindModifiers?: string;
        sortText: string;
        insertText?: string;
        /**
         * An optional span that indicates the text to be replaced by this completion item.
         * If present, this span should be used instead of the default one.
         * It will be set if the required span differs from the one generated by the default replacement behavior.
         */
        replacementSpan?: TextSpan;
        hasAction?: true;
        source?: string;
        isRecommended?: true;
    }
    interface CompletionEntryDetails {
        name: string;
        kind: ScriptElementKind;
        kindModifiers: string;
        displayParts: SymbolDisplayPart[];
        documentation?: SymbolDisplayPart[];
        tags?: JSDocTagInfo[];
        codeActions?: CodeAction[];
        source?: SymbolDisplayPart[];
    }
    interface OutliningSpan {
        /** The span of the document to actually collapse. */
        textSpan: TextSpan;
        /** The span of the document to display when the user hovers over the collapsed span. */
        hintSpan: TextSpan;
        /** The text to display in the editor for the collapsed region. */
        bannerText: string;
        /**
         * Whether or not this region should be automatically collapsed when
         * the 'Collapse to Definitions' command is invoked.
         */
        autoCollapse: boolean;
        /**
         * Classification of the contents of the span
         */
        kind: OutliningSpanKind;
    }
    enum OutliningSpanKind {
        /** Single or multi-line comments */
        Comment = "comment",
        /** Sections marked by '// #region' and '// #endregion' comments */
        Region = "region",
        /** Declarations and expressions */
        Code = "code",
        /** Contiguous blocks of import declarations */
        Imports = "imports"
    }
    enum OutputFileType {
        JavaScript = 0,
        SourceMap = 1,
        Declaration = 2
    }
    enum EndOfLineState {
        None = 0,
        InMultiLineCommentTrivia = 1,
        InSingleQuoteStringLiteral = 2,
        InDoubleQuoteStringLiteral = 3,
        InTemplateHeadOrNoSubstitutionTemplate = 4,
        InTemplateMiddleOrTail = 5,
        InTemplateSubstitutionPosition = 6
    }
    enum TokenClass {
        Punctuation = 0,
        Keyword = 1,
        Operator = 2,
        Comment = 3,
        Whitespace = 4,
        Identifier = 5,
        NumberLiteral = 6,
        BigIntLiteral = 7,
        StringLiteral = 8,
        RegExpLiteral = 9
    }
    interface ClassificationResult {
        finalLexState: EndOfLineState;
        entries: ClassificationInfo[];
    }
    interface ClassificationInfo {
        length: number;
        classification: TokenClass;
    }
    interface Classifier {
        /**
         * Gives lexical classifications of tokens on a line without any syntactic context.
         * For instance, a token consisting of the text 'string' can be either an identifier
         * named 'string' or the keyword 'string', however, because this classifier is not aware,
         * it relies on certain heuristics to give acceptable results. For classifications where
         * speed trumps accuracy, this function is preferable; however, for true accuracy, the
         * syntactic classifier is ideal. In fact, in certain editing scenarios, combining the
         * lexical, syntactic, and semantic classifiers may issue the best user experience.
         *
         * @param text                      The text of a line to classify.
         * @param lexState                  The state of the lexical classifier at the end of the previous line.
         * @param syntacticClassifierAbsent Whether the client is *not* using a syntactic classifier.
         *                                  If there is no syntactic classifier (syntacticClassifierAbsent=true),
         *                                  certain heuristics may be used in its place; however, if there is a
         *                                  syntactic classifier (syntacticClassifierAbsent=false), certain
         *                                  classifications which may be incorrectly categorized will be given
         *                                  back as Identifiers in order to allow the syntactic classifier to
         *                                  subsume the classification.
         * @deprecated Use getLexicalClassifications instead.
         */
        getClassificationsForLine(text: string, lexState: EndOfLineState, syntacticClassifierAbsent: boolean): ClassificationResult;
        getEncodedLexicalClassifications(text: string, endOfLineState: EndOfLineState, syntacticClassifierAbsent: boolean): Classifications;
    }
    enum ScriptElementKind {
        unknown = "",
        warning = "warning",
        /** predefined type (void) or keyword (class) */
        keyword = "keyword",
        /** top level script node */
        scriptElement = "script",
        /** module foo {} */
        moduleElement = "module",
        /** class X {} */
        classElement = "class",
        /** var x = class X {} */
        localClassElement = "local class",
        /** interface Y {} */
        interfaceElement = "interface",
        /** type T = ... */
        typeElement = "type",
        /** enum E */
        enumElement = "enum",
        enumMemberElement = "enum member",
        /**
         * Inside module and script only
         * const v = ..
         */
        variableElement = "var",
        /** Inside function */
        localVariableElement = "local var",
        /**
         * Inside module and script only
         * function f() { }
         */
        functionElement = "function",
        /** Inside function */
        localFunctionElement = "local function",
        /** class X { [public|private]* foo() {} } */
        memberFunctionElement = "method",
        /** class X { [public|private]* [get|set] foo:number; } */
        memberGetAccessorElement = "getter",
        memberSetAccessorElement = "setter",
        /**
         * class X { [public|private]* foo:number; }
         * interface Y { foo:number; }
         */
        memberVariableElement = "property",
        /** class X { constructor() { } } */
        constructorImplementationElement = "constructor",
        /** interface Y { ():number; } */
        callSignatureElement = "call",
        /** interface Y { []:number; } */
        indexSignatureElement = "index",
        /** interface Y { new():Y; } */
        constructSignatureElement = "construct",
        /** function foo(*Y*: string) */
        parameterElement = "parameter",
        typeParameterElement = "type parameter",
        primitiveType = "primitive type",
        label = "label",
        alias = "alias",
        constElement = "const",
        letElement = "let",
        directory = "directory",
        externalModuleName = "external module name",
        /**
         * <JsxTagName attribute1 attribute2={0} />
         */
        jsxAttribute = "JSX attribute",
        /** String literal */
        string = "string"
    }
    enum ScriptElementKindModifier {
        none = "",
        publicMemberModifier = "public",
        privateMemberModifier = "private",
        protectedMemberModifier = "protected",
        exportedModifier = "export",
        ambientModifier = "declare",
        staticModifier = "static",
        abstractModifier = "abstract",
        optionalModifier = "optional",
        dtsModifier = ".d.ts",
        tsModifier = ".ts",
        tsxModifier = ".tsx",
        jsModifier = ".js",
        jsxModifier = ".jsx",
        jsonModifier = ".json"
    }
    enum ClassificationTypeNames {
        comment = "comment",
        identifier = "identifier",
        keyword = "keyword",
        numericLiteral = "number",
        bigintLiteral = "bigint",
        operator = "operator",
        stringLiteral = "string",
        whiteSpace = "whitespace",
        text = "text",
        punctuation = "punctuation",
        className = "class name",
        enumName = "enum name",
        interfaceName = "interface name",
        moduleName = "module name",
        typeParameterName = "type parameter name",
        typeAliasName = "type alias name",
        parameterName = "parameter name",
        docCommentTagName = "doc comment tag name",
        jsxOpenTagName = "jsx open tag name",
        jsxCloseTagName = "jsx close tag name",
        jsxSelfClosingTagName = "jsx self closing tag name",
        jsxAttribute = "jsx attribute",
        jsxText = "jsx text",
        jsxAttributeStringLiteralValue = "jsx attribute string literal value"
    }
    enum ClassificationType {
        comment = 1,
        identifier = 2,
        keyword = 3,
        numericLiteral = 4,
        operator = 5,
        stringLiteral = 6,
        regularExpressionLiteral = 7,
        whiteSpace = 8,
        text = 9,
        punctuation = 10,
        className = 11,
        enumName = 12,
        interfaceName = 13,
        moduleName = 14,
        typeParameterName = 15,
        typeAliasName = 16,
        parameterName = 17,
        docCommentTagName = 18,
        jsxOpenTagName = 19,
        jsxCloseTagName = 20,
        jsxSelfClosingTagName = 21,
        jsxAttribute = 22,
        jsxText = 23,
        jsxAttributeStringLiteralValue = 24,
        bigintLiteral = 25
    }
}
declare namespace ts {
    function createClassifier(): Classifier;
}
declare namespace ts {
    /**
     * The document registry represents a store of SourceFile objects that can be shared between
     * multiple LanguageService instances. A LanguageService instance holds on the SourceFile (AST)
     * of files in the context.
     * SourceFile objects account for most of the memory usage by the language service. Sharing
     * the same DocumentRegistry instance between different instances of LanguageService allow
     * for more efficient memory utilization since all projects will share at least the library
     * file (lib.d.ts).
     *
     * A more advanced use of the document registry is to serialize sourceFile objects to disk
     * and re-hydrate them when needed.
     *
     * To create a default DocumentRegistry, use createDocumentRegistry to create one, and pass it
     * to all subsequent createLanguageService calls.
     */
    interface DocumentRegistry {
        /**
         * Request a stored SourceFile with a given fileName and compilationSettings.
         * The first call to acquire will call createLanguageServiceSourceFile to generate
         * the SourceFile if was not found in the registry.
         *
         * @param fileName The name of the file requested
         * @param compilationSettings Some compilation settings like target affects the
         * shape of a the resulting SourceFile. This allows the DocumentRegistry to store
         * multiple copies of the same file for different compilation settings.
         * @param scriptSnapshot Text of the file. Only used if the file was not found
         * in the registry and a new one was created.
         * @param version Current version of the file. Only used if the file was not found
         * in the registry and a new one was created.
         */
        acquireDocument(fileName: string, compilationSettings: CompilerOptions, scriptSnapshot: IScriptSnapshot, version: string, scriptKind?: ScriptKind): SourceFile;
        acquireDocumentWithKey(fileName: string, path: Path, compilationSettings: CompilerOptions, key: DocumentRegistryBucketKey, scriptSnapshot: IScriptSnapshot, version: string, scriptKind?: ScriptKind): SourceFile;
        /**
         * Request an updated version of an already existing SourceFile with a given fileName
         * and compilationSettings. The update will in-turn call updateLanguageServiceSourceFile
         * to get an updated SourceFile.
         *
         * @param fileName The name of the file requested
         * @param compilationSettings Some compilation settings like target affects the
         * shape of a the resulting SourceFile. This allows the DocumentRegistry to store
         * multiple copies of the same file for different compilation settings.
         * @param scriptSnapshot Text of the file.
         * @param version Current version of the file.
         */
        updateDocument(fileName: string, compilationSettings: CompilerOptions, scriptSnapshot: IScriptSnapshot, version: string, scriptKind?: ScriptKind): SourceFile;
        updateDocumentWithKey(fileName: string, path: Path, compilationSettings: CompilerOptions, key: DocumentRegistryBucketKey, scriptSnapshot: IScriptSnapshot, version: string, scriptKind?: ScriptKind): SourceFile;
        getKeyForCompilationSettings(settings: CompilerOptions): DocumentRegistryBucketKey;
        /**
         * Informs the DocumentRegistry that a file is not needed any longer.
         *
         * Note: It is not allowed to call release on a SourceFile that was not acquired from
         * this registry originally.
         *
         * @param fileName The name of the file to be released
         * @param compilationSettings The compilation settings used to acquire the file
         */
        releaseDocument(fileName: string, compilationSettings: CompilerOptions): void;
        releaseDocumentWithKey(path: Path, key: DocumentRegistryBucketKey): void;
        reportStats(): string;
    }
    type DocumentRegistryBucketKey = string & {
        __bucketKey: any;
    };
    function createDocumentRegistry(useCaseSensitiveFileNames?: boolean, currentDirectory?: string): DocumentRegistry;
}
declare namespace ts {
    function preProcessFile(sourceText: string, readImportFiles?: boolean, detectJavaScriptImports?: boolean): PreProcessedFileInfo;
}
declare namespace ts {
    interface TranspileOptions {
        compilerOptions?: CompilerOptions;
        fileName?: string;
        reportDiagnostics?: boolean;
        moduleName?: string;
        renamedDependencies?: MapLike<string>;
        transformers?: CustomTransformers;
    }
    interface TranspileOutput {
        outputText: string;
        diagnostics?: Diagnostic[];
        sourceMapText?: string;
    }
    function transpileModule(input: string, transpileOptions: TranspileOptions): TranspileOutput;
    function transpile(input: string, compilerOptions?: CompilerOptions, fileName?: string, diagnostics?: Diagnostic[], moduleName?: string): string;
}
declare namespace ts {
    /** The version of the language service API */
    const servicesVersion = "0.8";
    function toEditorSettings(options: EditorOptions | EditorSettings): EditorSettings;
    function displayPartsToString(displayParts: SymbolDisplayPart[] | undefined): string;
    function getDefaultCompilerOptions(): CompilerOptions;
    function getSupportedCodeFixes(): string[];
    function createLanguageServiceSourceFile(fileName: string, scriptSnapshot: IScriptSnapshot, scriptTarget: ScriptTarget, version: string, setNodeParents: boolean, scriptKind?: ScriptKind): SourceFile;
    let disableIncrementalParsing: boolean;
    function updateLanguageServiceSourceFile(sourceFile: SourceFile, scriptSnapshot: IScriptSnapshot, version: string, textChangeRange: TextChangeRange | undefined, aggressiveChecks?: boolean): SourceFile;
    function createLanguageService(host: LanguageServiceHost, documentRegistry?: DocumentRegistry, syntaxOnly?: boolean): LanguageService;
    /**
     * Get the path of the default library files (lib.d.ts) as distributed with the typescript
     * node package.
     * The functionality is not supported if the ts module is consumed outside of a node module.
     */
    function getDefaultLibFilePath(options: CompilerOptions): string;
}
declare namespace ts {
    /**
     * Transform one or more nodes using the supplied transformers.
     * @param source A single `Node` or an array of `Node` objects.
     * @param transformers An array of `TransformerFactory` callbacks used to process the transformation.
     * @param compilerOptions Optional compiler options.
     */
    function transform<T extends Node>(source: T | T[], transformers: TransformerFactory<T>[], compilerOptions?: CompilerOptions): TransformationResult<T>;
}
declare namespace ts.server {
    interface CompressedData {
        length: number;
        compressionKind: string;
        data: any;
    }
    type RequireResult = {
        module: {};
        error: undefined;
    } | {
        module: undefined;
        error: {
            stack?: string;
            message?: string;
        };
    };
    interface ServerHost extends System {
        watchFile(path: string, callback: FileWatcherCallback, pollingInterval?: number): FileWatcher;
        watchDirectory(path: string, callback: DirectoryWatcherCallback, recursive?: boolean): FileWatcher;
        setTimeout(callback: (...args: any[]) => void, ms: number, ...args: any[]): any;
        clearTimeout(timeoutId: any): void;
        setImmediate(callback: (...args: any[]) => void, ...args: any[]): any;
        clearImmediate(timeoutId: any): void;
        gc?(): void;
        trace?(s: string): void;
        require?(initialPath: string, moduleName: string): RequireResult;
    }
}
declare namespace ts.server {
    enum LogLevel {
        terse = 0,
        normal = 1,
        requestTime = 2,
        verbose = 3
    }
    const emptyArray: SortedReadonlyArray<never>;
    interface Logger {
        close(): void;
        hasLevel(level: LogLevel): boolean;
        loggingEnabled(): boolean;
        perftrc(s: string): void;
        info(s: string): void;
        startGroup(): void;
        endGroup(): void;
        msg(s: string, type?: Msg): void;
        getLogFileName(): string | undefined;
    }
    enum Msg {
        Err = "Err",
        Info = "Info",
        Perf = "Perf"
    }
    namespace Msg {
        /** @deprecated Only here for backwards-compatibility. Prefer just `Msg`. */
        type Types = Msg;
    }
    function createInstallTypingsRequest(project: Project, typeAcquisition: TypeAcquisition, unresolvedImports: SortedReadonlyArray<string>, cachePath?: string): DiscoverTypings;
    namespace Errors {
        function ThrowNoProject(): never;
        function ThrowProjectLanguageServiceDisabled(): never;
        function ThrowProjectDoesNotContainDocument(fileName: string, project: Project): never;
    }
    type NormalizedPath = string & {
        __normalizedPathTag: any;
    };
    function toNormalizedPath(fileName: string): NormalizedPath;
    function normalizedPathToPath(normalizedPath: NormalizedPath, currentDirectory: string, getCanonicalFileName: (f: string) => string): Path;
    function asNormalizedPath(fileName: string): NormalizedPath;
    interface NormalizedPathMap<T> {
        get(path: NormalizedPath): T | undefined;
        set(path: NormalizedPath, value: T): void;
        contains(path: NormalizedPath): boolean;
        remove(path: NormalizedPath): void;
    }
    function createNormalizedPathMap<T>(): NormalizedPathMap<T>;
    function isInferredProjectName(name: string): boolean;
    function makeInferredProjectName(counter: number): string;
    function createSortedArray<T>(): SortedArray<T>;
}
/**
 * Declaration module describing the TypeScript Server protocol
 */
declare namespace ts.server.protocol {
    enum CommandTypes {
        JsxClosingTag = "jsxClosingTag",
        Brace = "brace",
        BraceCompletion = "braceCompletion",
        GetSpanOfEnclosingComment = "getSpanOfEnclosingComment",
        Change = "change",
        Close = "close",
        /** @deprecated Prefer CompletionInfo -- see comment on CompletionsResponse */
        Completions = "completions",
        CompletionInfo = "completionInfo",
        CompletionDetails = "completionEntryDetails",
        CompileOnSaveAffectedFileList = "compileOnSaveAffectedFileList",
        CompileOnSaveEmitFile = "compileOnSaveEmitFile",
        Configure = "configure",
        Definition = "definition",
        DefinitionAndBoundSpan = "definitionAndBoundSpan",
        Implementation = "implementation",
        Exit = "exit",
        Format = "format",
        Formatonkey = "formatonkey",
        Geterr = "geterr",
        GeterrForProject = "geterrForProject",
        SemanticDiagnosticsSync = "semanticDiagnosticsSync",
        SyntacticDiagnosticsSync = "syntacticDiagnosticsSync",
        SuggestionDiagnosticsSync = "suggestionDiagnosticsSync",
        NavBar = "navbar",
        Navto = "navto",
        NavTree = "navtree",
        NavTreeFull = "navtree-full",
        /** @deprecated */
        Occurrences = "occurrences",
        DocumentHighlights = "documentHighlights",
        Open = "open",
        Quickinfo = "quickinfo",
        References = "references",
        Reload = "reload",
        Rename = "rename",
        Saveto = "saveto",
        SignatureHelp = "signatureHelp",
        Status = "status",
        TypeDefinition = "typeDefinition",
        ProjectInfo = "projectInfo",
        ReloadProjects = "reloadProjects",
        Unknown = "unknown",
        OpenExternalProject = "openExternalProject",
        OpenExternalProjects = "openExternalProjects",
        CloseExternalProject = "closeExternalProject",
        UpdateOpen = "updateOpen",
        GetOutliningSpans = "getOutliningSpans",
        TodoComments = "todoComments",
        Indentation = "indentation",
        DocCommentTemplate = "docCommentTemplate",
        CompilerOptionsForInferredProjects = "compilerOptionsForInferredProjects",
        GetCodeFixes = "getCodeFixes",
        GetCombinedCodeFix = "getCombinedCodeFix",
        ApplyCodeActionCommand = "applyCodeActionCommand",
        GetSupportedCodeFixes = "getSupportedCodeFixes",
        GetApplicableRefactors = "getApplicableRefactors",
        GetEditsForRefactor = "getEditsForRefactor",
        OrganizeImports = "organizeImports",
        GetEditsForFileRename = "getEditsForFileRename",
        ConfigurePlugin = "configurePlugin",
        SelectionRange = "selectionRange",
    }
    /**
     * A TypeScript Server message
     */
    interface Message {
        /**
         * Sequence number of the message
         */
        seq: number;
        /**
         * One of "request", "response", or "event"
         */
        type: "request" | "response" | "event";
    }
    /**
     * Client-initiated request message
     */
    interface Request extends Message {
        type: "request";
        /**
         * The command to execute
         */
        command: string;
        /**
         * Object containing arguments for the command
         */
        arguments?: any;
    }
    /**
     * Request to reload the project structure for all the opened files
     */
    interface ReloadProjectsRequest extends Message {
        command: CommandTypes.ReloadProjects;
    }
    /**
     * Server-initiated event message
     */
    interface Event extends Message {
        type: "event";
        /**
         * Name of event
         */
        event: string;
        /**
         * Event-specific information
         */
        body?: any;
    }
    /**
     * Response by server to client request message.
     */
    interface Response extends Message {
        type: "response";
        /**
         * Sequence number of the request message.
         */
        request_seq: number;
        /**
         * Outcome of the request.
         */
        success: boolean;
        /**
         * The command requested.
         */
        command: string;
        /**
         * If success === false, this should always be provided.
         * Otherwise, may (or may not) contain a success message.
         */
        message?: string;
        /**
         * Contains message body if success === true.
         */
        body?: any;
        /**
         * Contains extra information that plugin can include to be passed on
         */
        metadata?: unknown;
    }
    /**
     * Arguments for FileRequest messages.
     */
    interface FileRequestArgs {
        /**
         * The file for the request (absolute pathname required).
         */
        file: string;
        projectFileName?: string;
    }
    interface StatusRequest extends Request {
        command: CommandTypes.Status;
    }
    interface StatusResponseBody {
        /**
         * The TypeScript version (`ts.version`).
         */
        version: string;
    }
    /**
     * Response to StatusRequest
     */
    interface StatusResponse extends Response {
        body: StatusResponseBody;
    }
    /**
     * Requests a JS Doc comment template for a given position
     */
    interface DocCommentTemplateRequest extends FileLocationRequest {
        command: CommandTypes.DocCommentTemplate;
    }
    /**
     * Response to DocCommentTemplateRequest
     */
    interface DocCommandTemplateResponse extends Response {
        body?: TextInsertion;
    }
    /**
     * A request to get TODO comments from the file
     */
    interface TodoCommentRequest extends FileRequest {
        command: CommandTypes.TodoComments;
        arguments: TodoCommentRequestArgs;
    }
    /**
     * Arguments for TodoCommentRequest request.
     */
    interface TodoCommentRequestArgs extends FileRequestArgs {
        /**
         * Array of target TodoCommentDescriptors that describes TODO comments to be found
         */
        descriptors: TodoCommentDescriptor[];
    }
    /**
     * Response for TodoCommentRequest request.
     */
    interface TodoCommentsResponse extends Response {
        body?: TodoComment[];
    }
    /**
     * A request to determine if the caret is inside a comment.
     */
    interface SpanOfEnclosingCommentRequest extends FileLocationRequest {
        command: CommandTypes.GetSpanOfEnclosingComment;
        arguments: SpanOfEnclosingCommentRequestArgs;
    }
    interface SpanOfEnclosingCommentRequestArgs extends FileLocationRequestArgs {
        /**
         * Requires that the enclosing span be a multi-line comment, or else the request returns undefined.
         */
        onlyMultiLine: boolean;
    }
    /**
     * Request to obtain outlining spans in file.
     */
    interface OutliningSpansRequest extends FileRequest {
        command: CommandTypes.GetOutliningSpans;
    }
    interface OutliningSpan {
        /** The span of the document to actually collapse. */
        textSpan: TextSpan;
        /** The span of the document to display when the user hovers over the collapsed span. */
        hintSpan: TextSpan;
        /** The text to display in the editor for the collapsed region. */
        bannerText: string;
        /**
         * Whether or not this region should be automatically collapsed when
         * the 'Collapse to Definitions' command is invoked.
         */
        autoCollapse: boolean;
        /**
         * Classification of the contents of the span
         */
        kind: OutliningSpanKind;
    }
    /**
     * Response to OutliningSpansRequest request.
     */
    interface OutliningSpansResponse extends Response {
        body?: OutliningSpan[];
    }
    /**
     * A request to get indentation for a location in file
     */
    interface IndentationRequest extends FileLocationRequest {
        command: CommandTypes.Indentation;
        arguments: IndentationRequestArgs;
    }
    /**
     * Response for IndentationRequest request.
     */
    interface IndentationResponse extends Response {
        body?: IndentationResult;
    }
    /**
     * Indentation result representing where indentation should be placed
     */
    interface IndentationResult {
        /**
         * The base position in the document that the indent should be relative to
         */
        position: number;
        /**
         * The number of columns the indent should be at relative to the position's column.
         */
        indentation: number;
    }
    /**
     * Arguments for IndentationRequest request.
     */
    interface IndentationRequestArgs extends FileLocationRequestArgs {
        /**
         * An optional set of settings to be used when computing indentation.
         * If argument is omitted - then it will use settings for file that were previously set via 'configure' request or global settings.
         */
        options?: EditorSettings;
    }
    /**
     * Arguments for ProjectInfoRequest request.
     */
    interface ProjectInfoRequestArgs extends FileRequestArgs {
        /**
         * Indicate if the file name list of the project is needed
         */
        needFileNameList: boolean;
    }
    /**
     * A request to get the project information of the current file.
     */
    interface ProjectInfoRequest extends Request {
        command: CommandTypes.ProjectInfo;
        arguments: ProjectInfoRequestArgs;
    }
    /**
     * A request to retrieve compiler options diagnostics for a project
     */
    interface CompilerOptionsDiagnosticsRequest extends Request {
        arguments: CompilerOptionsDiagnosticsRequestArgs;
    }
    /**
     * Arguments for CompilerOptionsDiagnosticsRequest request.
     */
    interface CompilerOptionsDiagnosticsRequestArgs {
        /**
         * Name of the project to retrieve compiler options diagnostics.
         */
        projectFileName: string;
    }
    /**
     * Response message body for "projectInfo" request
     */
    interface ProjectInfo {
        /**
         * For configured project, this is the normalized path of the 'tsconfig.json' file
         * For inferred project, this is undefined
         */
        configFileName: string;
        /**
         * The list of normalized file name in the project, including 'lib.d.ts'
         */
        fileNames?: string[];
        /**
         * Indicates if the project has a active language service instance
         */
        languageServiceDisabled?: boolean;
    }
    /**
     * Represents diagnostic info that includes location of diagnostic in two forms
     * - start position and length of the error span
     * - startLocation and endLocation - a pair of Location objects that store start/end line and offset of the error span.
     */
    interface DiagnosticWithLinePosition {
        message: string;
        start: number;
        length: number;
        startLocation: Location;
        endLocation: Location;
        category: string;
        code: number;
        /** May store more in future. For now, this will simply be `true` to indicate when a diagnostic is an unused-identifier diagnostic. */
        reportsUnnecessary?: {};
        relatedInformation?: DiagnosticRelatedInformation[];
    }
    /**
     * Response message for "projectInfo" request
     */
    interface ProjectInfoResponse extends Response {
        body?: ProjectInfo;
    }
    /**
     * Request whose sole parameter is a file name.
     */
    interface FileRequest extends Request {
        arguments: FileRequestArgs;
    }
    /**
     * Instances of this interface specify a location in a source file:
     * (file, line, character offset), where line and character offset are 1-based.
     */
    interface FileLocationRequestArgs extends FileRequestArgs {
        /**
         * The line number for the request (1-based).
         */
        line: number;
        /**
         * The character offset (on the line) for the request (1-based).
         */
        offset: number;
    }
    type FileLocationOrRangeRequestArgs = FileLocationRequestArgs | FileRangeRequestArgs;
    /**
     * Request refactorings at a given position or selection area.
     */
    interface GetApplicableRefactorsRequest extends Request {
        command: CommandTypes.GetApplicableRefactors;
        arguments: GetApplicableRefactorsRequestArgs;
    }
    type GetApplicableRefactorsRequestArgs = FileLocationOrRangeRequestArgs;
    /**
     * Response is a list of available refactorings.
     * Each refactoring exposes one or more "Actions"; a user selects one action to invoke a refactoring
     */
    interface GetApplicableRefactorsResponse extends Response {
        body?: ApplicableRefactorInfo[];
    }
    /**
     * A set of one or more available refactoring actions, grouped under a parent refactoring.
     */
    interface ApplicableRefactorInfo {
        /**
         * The programmatic name of the refactoring
         */
        name: string;
        /**
         * A description of this refactoring category to show to the user.
         * If the refactoring gets inlined (see below), this text will not be visible.
         */
        description: string;
        /**
         * Inlineable refactorings can have their actions hoisted out to the top level
         * of a context menu. Non-inlineanable refactorings should always be shown inside
         * their parent grouping.
         *
         * If not specified, this value is assumed to be 'true'
         */
        inlineable?: boolean;
        actions: RefactorActionInfo[];
    }
    /**
     * Represents a single refactoring action - for example, the "Extract Method..." refactor might
     * offer several actions, each corresponding to a surround class or closure to extract into.
     */
    interface RefactorActionInfo {
        /**
         * The programmatic name of the refactoring action
         */
        name: string;
        /**
         * A description of this refactoring action to show to the user.
         * If the parent refactoring is inlined away, this will be the only text shown,
         * so this description should make sense by itself if the parent is inlineable=true
         */
        description: string;
    }
    interface GetEditsForRefactorRequest extends Request {
        command: CommandTypes.GetEditsForRefactor;
        arguments: GetEditsForRefactorRequestArgs;
    }
    /**
     * Request the edits that a particular refactoring action produces.
     * Callers must specify the name of the refactor and the name of the action.
     */
    type GetEditsForRefactorRequestArgs = FileLocationOrRangeRequestArgs & {
        refactor: string;
        action: string;
    };
    interface GetEditsForRefactorResponse extends Response {
        body?: RefactorEditInfo;
    }
    interface RefactorEditInfo {
        edits: FileCodeEdits[];
        /**
         * An optional location where the editor should start a rename operation once
         * the refactoring edits have been applied
         */
        renameLocation?: Location;
        renameFilename?: string;
    }
    /**
     * Organize imports by:
     *   1) Removing unused imports
     *   2) Coalescing imports from the same module
     *   3) Sorting imports
     */
    interface OrganizeImportsRequest extends Request {
        command: CommandTypes.OrganizeImports;
        arguments: OrganizeImportsRequestArgs;
    }
    type OrganizeImportsScope = GetCombinedCodeFixScope;
    interface OrganizeImportsRequestArgs {
        scope: OrganizeImportsScope;
    }
    interface OrganizeImportsResponse extends Response {
        body: ReadonlyArray<FileCodeEdits>;
    }
    interface GetEditsForFileRenameRequest extends Request {
        command: CommandTypes.GetEditsForFileRename;
        arguments: GetEditsForFileRenameRequestArgs;
    }
    /** Note: Paths may also be directories. */
    interface GetEditsForFileRenameRequestArgs {
        readonly oldFilePath: string;
        readonly newFilePath: string;
    }
    interface GetEditsForFileRenameResponse extends Response {
        body: ReadonlyArray<FileCodeEdits>;
    }
    /**
     * Request for the available codefixes at a specific position.
     */
    interface CodeFixRequest extends Request {
        command: CommandTypes.GetCodeFixes;
        arguments: CodeFixRequestArgs;
    }
    interface GetCombinedCodeFixRequest extends Request {
        command: CommandTypes.GetCombinedCodeFix;
        arguments: GetCombinedCodeFixRequestArgs;
    }
    interface GetCombinedCodeFixResponse extends Response {
        body: CombinedCodeActions;
    }
    interface ApplyCodeActionCommandRequest extends Request {
        command: CommandTypes.ApplyCodeActionCommand;
        arguments: ApplyCodeActionCommandRequestArgs;
    }
    interface ApplyCodeActionCommandResponse extends Response {
    }
    interface FileRangeRequestArgs extends FileRequestArgs {
        /**
         * The line number for the request (1-based).
         */
        startLine: number;
        /**
         * The character offset (on the line) for the request (1-based).
         */
        startOffset: number;
        /**
         * The line number for the request (1-based).
         */
        endLine: number;
        /**
         * The character offset (on the line) for the request (1-based).
         */
        endOffset: number;
    }
    /**
     * Instances of this interface specify errorcodes on a specific location in a sourcefile.
     */
    interface CodeFixRequestArgs extends FileRangeRequestArgs {
        /**
         * Errorcodes we want to get the fixes for.
         */
        errorCodes: ReadonlyArray<number>;
    }
    interface GetCombinedCodeFixRequestArgs {
        scope: GetCombinedCodeFixScope;
        fixId: {};
    }
    interface GetCombinedCodeFixScope {
        type: "file";
        args: FileRequestArgs;
    }
    interface ApplyCodeActionCommandRequestArgs {
        /** May also be an array of commands. */
        command: {};
    }
    /**
     * Response for GetCodeFixes request.
     */
    interface GetCodeFixesResponse extends Response {
        body?: CodeAction[];
    }
    /**
     * A request whose arguments specify a file location (file, line, col).
     */
    interface FileLocationRequest extends FileRequest {
        arguments: FileLocationRequestArgs;
    }
    /**
     * A request to get codes of supported code fixes.
     */
    interface GetSupportedCodeFixesRequest extends Request {
        command: CommandTypes.GetSupportedCodeFixes;
    }
    /**
     * A response for GetSupportedCodeFixesRequest request.
     */
    interface GetSupportedCodeFixesResponse extends Response {
        /**
         * List of error codes supported by the server.
         */
        body?: string[];
    }
    /**
     * Arguments for EncodedSemanticClassificationsRequest request.
     */
    interface EncodedSemanticClassificationsRequestArgs extends FileRequestArgs {
        /**
         * Start position of the span.
         */
        start: number;
        /**
         * Length of the span.
         */
        length: number;
    }
    /**
     * Arguments in document highlight request; include: filesToSearch, file,
     * line, offset.
     */
    interface DocumentHighlightsRequestArgs extends FileLocationRequestArgs {
        /**
         * List of files to search for document highlights.
         */
        filesToSearch: string[];
    }
    /**
     * Go to definition request; value of command field is
     * "definition". Return response giving the file locations that
     * define the symbol found in file at location line, col.
     */
    interface DefinitionRequest extends FileLocationRequest {
        command: CommandTypes.Definition;
    }
    interface DefinitionAndBoundSpanRequest extends FileLocationRequest {
        readonly command: CommandTypes.DefinitionAndBoundSpan;
    }
    interface DefinitionAndBoundSpanResponse extends Response {
        readonly body: DefinitionInfoAndBoundSpan;
    }
    /**
     * Go to type request; value of command field is
     * "typeDefinition". Return response giving the file locations that
     * define the type for the symbol found in file at location line, col.
     */
    interface TypeDefinitionRequest extends FileLocationRequest {
        command: CommandTypes.TypeDefinition;
    }
    /**
     * Go to implementation request; value of command field is
     * "implementation". Return response giving the file locations that
     * implement the symbol found in file at location line, col.
     */
    interface ImplementationRequest extends FileLocationRequest {
        command: CommandTypes.Implementation;
    }
    /**
     * Location in source code expressed as (one-based) line and (one-based) column offset.
     */
    interface Location {
        line: number;
        offset: number;
    }
    /**
     * Object found in response messages defining a span of text in source code.
     */
    interface TextSpan {
        /**
         * First character of the definition.
         */
        start: Location;
        /**
         * One character past last character of the definition.
         */
        end: Location;
    }
    /**
     * Object found in response messages defining a span of text in a specific source file.
     */
    interface FileSpan extends TextSpan {
        /**
         * File containing text span.
         */
        file: string;
    }
    interface DefinitionInfoAndBoundSpan {
        definitions: ReadonlyArray<FileSpan>;
        textSpan: TextSpan;
    }
    /**
     * Definition response message.  Gives text range for definition.
     */
    interface DefinitionResponse extends Response {
        body?: FileSpan[];
    }
    interface DefinitionInfoAndBoundSpanReponse extends Response {
        body?: DefinitionInfoAndBoundSpan;
    }
    /**
     * Definition response message.  Gives text range for definition.
     */
    interface TypeDefinitionResponse extends Response {
        body?: FileSpan[];
    }
    /**
     * Implementation response message.  Gives text range for implementations.
     */
    interface ImplementationResponse extends Response {
        body?: FileSpan[];
    }
    /**
     * Request to get brace completion for a location in the file.
     */
    interface BraceCompletionRequest extends FileLocationRequest {
        command: CommandTypes.BraceCompletion;
        arguments: BraceCompletionRequestArgs;
    }
    /**
     * Argument for BraceCompletionRequest request.
     */
    interface BraceCompletionRequestArgs extends FileLocationRequestArgs {
        /**
         * Kind of opening brace
         */
        openingBrace: string;
    }
    interface JsxClosingTagRequest extends FileLocationRequest {
        readonly command: CommandTypes.JsxClosingTag;
        readonly arguments: JsxClosingTagRequestArgs;
    }
    interface JsxClosingTagRequestArgs extends FileLocationRequestArgs {
    }
    interface JsxClosingTagResponse extends Response {
        readonly body: TextInsertion;
    }
    /**
     * @deprecated
     * Get occurrences request; value of command field is
     * "occurrences". Return response giving spans that are relevant
     * in the file at a given line and column.
     */
    interface OccurrencesRequest extends FileLocationRequest {
        command: CommandTypes.Occurrences;
    }
    /** @deprecated */
    interface OccurrencesResponseItem extends FileSpan {
        /**
         * True if the occurrence is a write location, false otherwise.
         */
        isWriteAccess: boolean;
        /**
         * True if the occurrence is in a string, undefined otherwise;
         */
        isInString?: true;
    }
    /** @deprecated */
    interface OccurrencesResponse extends Response {
        body?: OccurrencesResponseItem[];
    }
    /**
     * Get document highlights request; value of command field is
     * "documentHighlights". Return response giving spans that are relevant
     * in the file at a given line and column.
     */
    interface DocumentHighlightsRequest extends FileLocationRequest {
        command: CommandTypes.DocumentHighlights;
        arguments: DocumentHighlightsRequestArgs;
    }
    /**
     * Span augmented with extra information that denotes the kind of the highlighting to be used for span.
     */
    interface HighlightSpan extends TextSpan {
        kind: HighlightSpanKind;
    }
    /**
     * Represents a set of highligh spans for a give name
     */
    interface DocumentHighlightsItem {
        /**
         * File containing highlight spans.
         */
        file: string;
        /**
         * Spans to highlight in file.
         */
        highlightSpans: HighlightSpan[];
    }
    /**
     * Response for a DocumentHighlightsRequest request.
     */
    interface DocumentHighlightsResponse extends Response {
        body?: DocumentHighlightsItem[];
    }
    /**
     * Find references request; value of command field is
     * "references". Return response giving the file locations that
     * reference the symbol found in file at location line, col.
     */
    interface ReferencesRequest extends FileLocationRequest {
        command: CommandTypes.References;
    }
    interface ReferencesResponseItem extends FileSpan {
        /** Text of line containing the reference.  Including this
         *  with the response avoids latency of editor loading files
         * to show text of reference line (the server already has
         * loaded the referencing files).
         */
        lineText: string;
        /**
         * True if reference is a write location, false otherwise.
         */
        isWriteAccess: boolean;
        /**
         * True if reference is a definition, false otherwise.
         */
        isDefinition: boolean;
    }
    /**
     * The body of a "references" response message.
     */
    interface ReferencesResponseBody {
        /**
         * The file locations referencing the symbol.
         */
        refs: ReadonlyArray<ReferencesResponseItem>;
        /**
         * The name of the symbol.
         */
        symbolName: string;
        /**
         * The start character offset of the symbol (on the line provided by the references request).
         */
        symbolStartOffset: number;
        /**
         * The full display name of the symbol.
         */
        symbolDisplayString: string;
    }
    /**
     * Response to "references" request.
     */
    interface ReferencesResponse extends Response {
        body?: ReferencesResponseBody;
    }
    /**
     * Argument for RenameRequest request.
     */
    interface RenameRequestArgs extends FileLocationRequestArgs {
        /**
         * Should text at specified location be found/changed in comments?
         */
        findInComments?: boolean;
        /**
         * Should text at specified location be found/changed in strings?
         */
        findInStrings?: boolean;
    }
    /**
     * Rename request; value of command field is "rename". Return
     * response giving the file locations that reference the symbol
     * found in file at location line, col. Also return full display
     * name of the symbol so that client can print it unambiguously.
     */
    interface RenameRequest extends FileLocationRequest {
        command: CommandTypes.Rename;
        arguments: RenameRequestArgs;
    }
    /**
     * Information about the item to be renamed.
     */
    type RenameInfo = RenameInfoSuccess | RenameInfoFailure;
    interface RenameInfoSuccess {
        /**
         * True if item can be renamed.
         */
        canRename: true;
        /**
         * File or directory to rename.
         * If set, `getEditsForFileRename` should be called instead of `findRenameLocations`.
         */
        fileToRename?: string;
        /**
         * Display name of the item to be renamed.
         */
        displayName: string;
        /**
         * Full display name of item to be renamed.
         */
        fullDisplayName: string;
        /**
         * The items's kind (such as 'className' or 'parameterName' or plain 'text').
         */
        kind: ScriptElementKind;
        /**
         * Optional modifiers for the kind (such as 'public').
         */
        kindModifiers: string;
        /** Span of text to rename. */
        triggerSpan: TextSpan;
    }
    interface RenameInfoFailure {
        canRename: false;
        /**
         * Error message if item can not be renamed.
         */
        localizedErrorMessage: string;
    }
    /**
     *  A group of text spans, all in 'file'.
     */
    interface SpanGroup {
        /** The file to which the spans apply */
        file: string;
        /** The text spans in this group */
        locs: RenameTextSpan[];
    }
    interface RenameTextSpan extends TextSpan {
        readonly prefixText?: string;
        readonly suffixText?: string;
    }
    interface RenameResponseBody {
        /**
         * Information about the item to be renamed.
         */
        info: RenameInfo;
        /**
         * An array of span groups (one per file) that refer to the item to be renamed.
         */
        locs: ReadonlyArray<SpanGroup>;
    }
    /**
     * Rename response message.
     */
    interface RenameResponse extends Response {
        body?: RenameResponseBody;
    }
    /**
     * Represents a file in external project.
     * External project is project whose set of files, compilation options and open\close state
     * is maintained by the client (i.e. if all this data come from .csproj file in Visual Studio).
     * External project will exist even if all files in it are closed and should be closed explicitly.
     * If external project includes one or more tsconfig.json/jsconfig.json files then tsserver will
     * create configured project for every config file but will maintain a link that these projects were created
     * as a result of opening external project so they should be removed once external project is closed.
     */
    interface ExternalFile {
        /**
         * Name of file file
         */
        fileName: string;
        /**
         * Script kind of the file
         */
        scriptKind?: ScriptKindName | ts.ScriptKind;
        /**
         * Whether file has mixed content (i.e. .cshtml file that combines html markup with C#/JavaScript)
         */
        hasMixedContent?: boolean;
        /**
         * Content of the file
         */
        content?: string;
    }
    /**
     * Represent an external project
     */
    interface ExternalProject {
        /**
         * Project name
         */
        projectFileName: string;
        /**
         * List of root files in project
         */
        rootFiles: ExternalFile[];
        /**
         * Compiler options for the project
         */
        options: ExternalProjectCompilerOptions;
        /**
         * @deprecated typingOptions. Use typeAcquisition instead
         */
        typingOptions?: TypeAcquisition;
        /**
         * Explicitly specified type acquisition for the project
         */
        typeAcquisition?: TypeAcquisition;
    }
    interface CompileOnSaveMixin {
        /**
         * If compile on save is enabled for the project
         */
        compileOnSave?: boolean;
    }
    /**
     * For external projects, some of the project settings are sent together with
     * compiler settings.
     */
    type ExternalProjectCompilerOptions = CompilerOptions & CompileOnSaveMixin;
    /**
     * Represents a set of changes that happen in project
     */
    interface ProjectChanges {
        /**
         * List of added files
         */
        added: string[];
        /**
         * List of removed files
         */
        removed: string[];
        /**
         * List of updated files
         */
        updated: string[];
    }
    /**
     * Information found in a configure request.
     */
    interface ConfigureRequestArguments {
        /**
         * Information about the host, for example 'Emacs 24.4' or
         * 'Sublime Text version 3075'
         */
        hostInfo?: string;
        /**
         * If present, tab settings apply only to this file.
         */
        file?: string;
        /**
         * The format options to use during formatting and other code editing features.
         */
        formatOptions?: FormatCodeSettings;
        preferences?: UserPreferences;
        /**
         * The host's additional supported .js file extensions
         */
        extraFileExtensions?: FileExtensionInfo[];
    }
    /**
     *  Configure request; value of command field is "configure".  Specifies
     *  host information, such as host type, tab size, and indent size.
     */
    interface ConfigureRequest extends Request {
        command: CommandTypes.Configure;
        arguments: ConfigureRequestArguments;
    }
    /**
     * Response to "configure" request.  This is just an acknowledgement, so
     * no body field is required.
     */
    interface ConfigureResponse extends Response {
    }
    interface ConfigurePluginRequestArguments {
        pluginName: string;
        configuration: any;
    }
    interface ConfigurePluginRequest extends Request {
        command: CommandTypes.ConfigurePlugin;
        arguments: ConfigurePluginRequestArguments;
    }
    interface ConfigurePluginResponse extends Response {
    }
    interface SelectionRangeRequest extends FileRequest {
        command: CommandTypes.SelectionRange;
        arguments: SelectionRangeRequestArgs;
    }
    interface SelectionRangeRequestArgs extends FileRequestArgs {
        locations: Location[];
    }
    interface SelectionRangeResponse extends Response {
        body?: SelectionRange[];
    }
    interface SelectionRange {
        textSpan: TextSpan;
        parent?: SelectionRange;
    }
    /**
     *  Information found in an "open" request.
     */
    interface OpenRequestArgs extends FileRequestArgs {
        /**
         * Used when a version of the file content is known to be more up to date than the one on disk.
         * Then the known content will be used upon opening instead of the disk copy
         */
        fileContent?: string;
        /**
         * Used to specify the script kind of the file explicitly. It could be one of the following:
         *      "TS", "JS", "TSX", "JSX"
         */
        scriptKindName?: ScriptKindName;
        /**
         * Used to limit the searching for project config file. If given the searching will stop at this
         * root path; otherwise it will go all the way up to the dist root path.
         */
        projectRootPath?: string;
    }
    type ScriptKindName = "TS" | "JS" | "TSX" | "JSX";
    /**
     * Open request; value of command field is "open". Notify the
     * server that the client has file open.  The server will not
     * monitor the filesystem for changes in this file and will assume
     * that the client is updating the server (using the change and/or
     * reload messages) when the file changes. Server does not currently
     * send a response to an open request.
     */
    interface OpenRequest extends Request {
        command: CommandTypes.Open;
        arguments: OpenRequestArgs;
    }
    /**
     * Request to open or update external project
     */
    interface OpenExternalProjectRequest extends Request {
        command: CommandTypes.OpenExternalProject;
        arguments: OpenExternalProjectArgs;
    }
    /**
     * Arguments to OpenExternalProjectRequest request
     */
    type OpenExternalProjectArgs = ExternalProject;
    /**
     * Request to open multiple external projects
     */
    interface OpenExternalProjectsRequest extends Request {
        command: CommandTypes.OpenExternalProjects;
        arguments: OpenExternalProjectsArgs;
    }
    /**
     * Arguments to OpenExternalProjectsRequest
     */
    interface OpenExternalProjectsArgs {
        /**
         * List of external projects to open or update
         */
        projects: ExternalProject[];
    }
    /**
     * Response to OpenExternalProjectRequest request. This is just an acknowledgement, so
     * no body field is required.
     */
    interface OpenExternalProjectResponse extends Response {
    }
    /**
     * Response to OpenExternalProjectsRequest request. This is just an acknowledgement, so
     * no body field is required.
     */
    interface OpenExternalProjectsResponse extends Response {
    }
    /**
     * Request to close external project.
     */
    interface CloseExternalProjectRequest extends Request {
        command: CommandTypes.CloseExternalProject;
        arguments: CloseExternalProjectRequestArgs;
    }
    /**
     * Arguments to CloseExternalProjectRequest request
     */
    interface CloseExternalProjectRequestArgs {
        /**
         * Name of the project to close
         */
        projectFileName: string;
    }
    /**
     * Response to CloseExternalProjectRequest request. This is just an acknowledgement, so
     * no body field is required.
     */
    interface CloseExternalProjectResponse extends Response {
    }
    /**
     * Request to synchronize list of open files with the client
     */
    interface UpdateOpenRequest extends Request {
        command: CommandTypes.UpdateOpen;
        arguments: UpdateOpenRequestArgs;
    }
    /**
     * Arguments to UpdateOpenRequest
     */
    interface UpdateOpenRequestArgs {
        /**
         * List of newly open files
         */
        openFiles?: OpenRequestArgs[];
        /**
         * List of open files files that were changes
         */
        changedFiles?: FileCodeEdits[];
        /**
         * List of files that were closed
         */
        closedFiles?: string[];
    }
    /**
     * Request to set compiler options for inferred projects.
     * External projects are opened / closed explicitly.
     * Configured projects are opened when user opens loose file that has 'tsconfig.json' or 'jsconfig.json' anywhere in one of containing folders.
     * This configuration file will be used to obtain a list of files and configuration settings for the project.
     * Inferred projects are created when user opens a loose file that is not the part of external project
     * or configured project and will contain only open file and transitive closure of referenced files if 'useOneInferredProject' is false,
     * or all open loose files and its transitive closure of referenced files if 'useOneInferredProject' is true.
     */
    interface SetCompilerOptionsForInferredProjectsRequest extends Request {
        command: CommandTypes.CompilerOptionsForInferredProjects;
        arguments: SetCompilerOptionsForInferredProjectsArgs;
    }
    /**
     * Argument for SetCompilerOptionsForInferredProjectsRequest request.
     */
    interface SetCompilerOptionsForInferredProjectsArgs {
        /**
         * Compiler options to be used with inferred projects.
         */
        options: ExternalProjectCompilerOptions;
        /**
         * Specifies the project root path used to scope compiler options.
         * It is an error to provide this property if the server has not been started with
         * `useInferredProjectPerProjectRoot` enabled.
         */
        projectRootPath?: string;
    }
    /**
     * Response to SetCompilerOptionsForInferredProjectsResponse request. This is just an acknowledgement, so
     * no body field is required.
     */
    interface SetCompilerOptionsForInferredProjectsResponse extends Response {
    }
    /**
     *  Exit request; value of command field is "exit".  Ask the server process
     *  to exit.
     */
    interface ExitRequest extends Request {
        command: CommandTypes.Exit;
    }
    /**
     * Close request; value of command field is "close". Notify the
     * server that the client has closed a previously open file.  If
     * file is still referenced by open files, the server will resume
     * monitoring the filesystem for changes to file.  Server does not
     * currently send a response to a close request.
     */
    interface CloseRequest extends FileRequest {
        command: CommandTypes.Close;
    }
    /**
     * Request to obtain the list of files that should be regenerated if target file is recompiled.
     * NOTE: this us query-only operation and does not generate any output on disk.
     */
    interface CompileOnSaveAffectedFileListRequest extends FileRequest {
        command: CommandTypes.CompileOnSaveAffectedFileList;
    }
    /**
     * Contains a list of files that should be regenerated in a project
     */
    interface CompileOnSaveAffectedFileListSingleProject {
        /**
         * Project name
         */
        projectFileName: string;
        /**
         * List of files names that should be recompiled
         */
        fileNames: string[];
        /**
         * true if project uses outFile or out compiler option
         */
        projectUsesOutFile: boolean;
    }
    /**
     * Response for CompileOnSaveAffectedFileListRequest request;
     */
    interface CompileOnSaveAffectedFileListResponse extends Response {
        body: CompileOnSaveAffectedFileListSingleProject[];
    }
    /**
     * Request to recompile the file. All generated outputs (.js, .d.ts or .js.map files) is written on disk.
     */
    interface CompileOnSaveEmitFileRequest extends FileRequest {
        command: CommandTypes.CompileOnSaveEmitFile;
        arguments: CompileOnSaveEmitFileRequestArgs;
    }
    /**
     * Arguments for CompileOnSaveEmitFileRequest
     */
    interface CompileOnSaveEmitFileRequestArgs extends FileRequestArgs {
        /**
         * if true - then file should be recompiled even if it does not have any changes.
         */
        forced?: boolean;
    }
    /**
     * Quickinfo request; value of command field is
     * "quickinfo". Return response giving a quick type and
     * documentation string for the symbol found in file at location
     * line, col.
     */
    interface QuickInfoRequest extends FileLocationRequest {
        command: CommandTypes.Quickinfo;
    }
    /**
     * Body of QuickInfoResponse.
     */
    interface QuickInfoResponseBody {
        /**
         * The symbol's kind (such as 'className' or 'parameterName' or plain 'text').
         */
        kind: ScriptElementKind;
        /**
         * Optional modifiers for the kind (such as 'public').
         */
        kindModifiers: string;
        /**
         * Starting file location of symbol.
         */
        start: Location;
        /**
         * One past last character of symbol.
         */
        end: Location;
        /**
         * Type and kind of symbol.
         */
        displayString: string;
        /**
         * Documentation associated with symbol.
         */
        documentation: string;
        /**
         * JSDoc tags associated with symbol.
         */
        tags: JSDocTagInfo[];
    }
    /**
     * Quickinfo response message.
     */
    interface QuickInfoResponse extends Response {
        body?: QuickInfoResponseBody;
    }
    /**
     * Arguments for format messages.
     */
    interface FormatRequestArgs extends FileLocationRequestArgs {
        /**
         * Last line of range for which to format text in file.
         */
        endLine: number;
        /**
         * Character offset on last line of range for which to format text in file.
         */
        endOffset: number;
        /**
         * Format options to be used.
         */
        options?: FormatCodeSettings;
    }
    /**
     * Format request; value of command field is "format".  Return
     * response giving zero or more edit instructions.  The edit
     * instructions will be sorted in file order.  Applying the edit
     * instructions in reverse to file will result in correctly
     * reformatted text.
     */
    interface FormatRequest extends FileLocationRequest {
        command: CommandTypes.Format;
        arguments: FormatRequestArgs;
    }
    /**
     * Object found in response messages defining an editing
     * instruction for a span of text in source code.  The effect of
     * this instruction is to replace the text starting at start and
     * ending one character before end with newText. For an insertion,
     * the text span is empty.  For a deletion, newText is empty.
     */
    interface CodeEdit {
        /**
         * First character of the text span to edit.
         */
        start: Location;
        /**
         * One character past last character of the text span to edit.
         */
        end: Location;
        /**
         * Replace the span defined above with this string (may be
         * the empty string).
         */
        newText: string;
    }
    interface FileCodeEdits {
        fileName: string;
        textChanges: CodeEdit[];
    }
    interface CodeFixResponse extends Response {
        /** The code actions that are available */
        body?: CodeFixAction[];
    }
    interface CodeAction {
        /** Description of the code action to display in the UI of the editor */
        description: string;
        /** Text changes to apply to each file as part of the code action */
        changes: FileCodeEdits[];
        /** A command is an opaque object that should be passed to `ApplyCodeActionCommandRequestArgs` without modification.  */
        commands?: {}[];
    }
    interface CombinedCodeActions {
        changes: ReadonlyArray<FileCodeEdits>;
        commands?: ReadonlyArray<{}>;
    }
    interface CodeFixAction extends CodeAction {
        /** Short name to identify the fix, for use by telemetry. */
        fixName: string;
        /**
         * If present, one may call 'getCombinedCodeFix' with this fixId.
         * This may be omitted to indicate that the code fix can't be applied in a group.
         */
        fixId?: {};
        /** Should be present if and only if 'fixId' is. */
        fixAllDescription?: string;
    }
    /**
     * Format and format on key response message.
     */
    interface FormatResponse extends Response {
        body?: CodeEdit[];
    }
    /**
     * Arguments for format on key messages.
     */
    interface FormatOnKeyRequestArgs extends FileLocationRequestArgs {
        /**
         * Key pressed (';', '\n', or '}').
         */
        key: string;
        options?: FormatCodeSettings;
    }
    /**
     * Format on key request; value of command field is
     * "formatonkey". Given file location and key typed (as string),
     * return response giving zero or more edit instructions.  The
     * edit instructions will be sorted in file order.  Applying the
     * edit instructions in reverse to file will result in correctly
     * reformatted text.
     */
    interface FormatOnKeyRequest extends FileLocationRequest {
        command: CommandTypes.Formatonkey;
        arguments: FormatOnKeyRequestArgs;
    }
    type CompletionsTriggerCharacter = "." | '"' | "'" | "`" | "/" | "@" | "<";
    /**
     * Arguments for completions messages.
     */
    interface CompletionsRequestArgs extends FileLocationRequestArgs {
        /**
         * Optional prefix to apply to possible completions.
         */
        prefix?: string;
        /**
         * Character that was responsible for triggering completion.
         * Should be `undefined` if a user manually requested completion.
         */
        triggerCharacter?: CompletionsTriggerCharacter;
        /**
         * @deprecated Use UserPreferences.includeCompletionsForModuleExports
         */
        includeExternalModuleExports?: boolean;
        /**
         * @deprecated Use UserPreferences.includeCompletionsWithInsertText
         */
        includeInsertTextCompletions?: boolean;
    }
    /**
     * Completions request; value of command field is "completions".
     * Given a file location (file, line, col) and a prefix (which may
     * be the empty string), return the possible completions that
     * begin with prefix.
     */
    interface CompletionsRequest extends FileLocationRequest {
        command: CommandTypes.Completions | CommandTypes.CompletionInfo;
        arguments: CompletionsRequestArgs;
    }
    /**
     * Arguments for completion details request.
     */
    interface CompletionDetailsRequestArgs extends FileLocationRequestArgs {
        /**
         * Names of one or more entries for which to obtain details.
         */
        entryNames: (string | CompletionEntryIdentifier)[];
    }
    interface CompletionEntryIdentifier {
        name: string;
        source?: string;
    }
    /**
     * Completion entry details request; value of command field is
     * "completionEntryDetails".  Given a file location (file, line,
     * col) and an array of completion entry names return more
     * detailed information for each completion entry.
     */
    interface CompletionDetailsRequest extends FileLocationRequest {
        command: CommandTypes.CompletionDetails;
        arguments: CompletionDetailsRequestArgs;
    }
    /**
     * Part of a symbol description.
     */
    interface SymbolDisplayPart {
        /**
         * Text of an item describing the symbol.
         */
        text: string;
        /**
         * The symbol's kind (such as 'className' or 'parameterName' or plain 'text').
         */
        kind: string;
    }
    /**
     * An item found in a completion response.
     */
    interface CompletionEntry {
        /**
         * The symbol's name.
         */
        name: string;
        /**
         * The symbol's kind (such as 'className' or 'parameterName').
         */
        kind: ScriptElementKind;
        /**
         * Optional modifiers for the kind (such as 'public').
         */
        kindModifiers?: string;
        /**
         * A string that is used for comparing completion items so that they can be ordered.  This
         * is often the same as the name but may be different in certain circumstances.
         */
        sortText: string;
        /**
         * Text to insert instead of `name`.
         * This is used to support bracketed completions; If `name` might be "a-b" but `insertText` would be `["a-b"]`,
         * coupled with `replacementSpan` to replace a dotted access with a bracket access.
         */
        insertText?: string;
        /**
         * An optional span that indicates the text to be replaced by this completion item.
         * If present, this span should be used instead of the default one.
         * It will be set if the required span differs from the one generated by the default replacement behavior.
         */
        replacementSpan?: TextSpan;
        /**
         * Indicates whether commiting this completion entry will require additional code actions to be
         * made to avoid errors. The CompletionEntryDetails will have these actions.
         */
        hasAction?: true;
        /**
         * Identifier (not necessarily human-readable) identifying where this completion came from.
         */
        source?: string;
        /**
         * If true, this completion should be highlighted as recommended. There will only be one of these.
         * This will be set when we know the user should write an expression with a certain type and that type is an enum or constructable class.
         * Then either that enum/class or a namespace containing it will be the recommended symbol.
         */
        isRecommended?: true;
    }
    /**
     * Additional completion entry details, available on demand
     */
    interface CompletionEntryDetails {
        /**
         * The symbol's name.
         */
        name: string;
        /**
         * The symbol's kind (such as 'className' or 'parameterName').
         */
        kind: ScriptElementKind;
        /**
         * Optional modifiers for the kind (such as 'public').
         */
        kindModifiers: string;
        /**
         * Display parts of the symbol (similar to quick info).
         */
        displayParts: SymbolDisplayPart[];
        /**
         * Documentation strings for the symbol.
         */
        documentation?: SymbolDisplayPart[];
        /**
         * JSDoc tags for the symbol.
         */
        tags?: JSDocTagInfo[];
        /**
         * The associated code actions for this entry
         */
        codeActions?: CodeAction[];
        /**
         * Human-readable description of the `source` from the CompletionEntry.
         */
        source?: SymbolDisplayPart[];
    }
    /** @deprecated Prefer CompletionInfoResponse, which supports several top-level fields in addition to the array of entries. */
    interface CompletionsResponse extends Response {
        body?: CompletionEntry[];
    }
    interface CompletionInfoResponse extends Response {
        body?: CompletionInfo;
    }
    interface CompletionInfo {
        readonly isGlobalCompletion: boolean;
        readonly isMemberCompletion: boolean;
        readonly isNewIdentifierLocation: boolean;
        readonly entries: ReadonlyArray<CompletionEntry>;
    }
    interface CompletionDetailsResponse extends Response {
        body?: CompletionEntryDetails[];
    }
    /**
     * Signature help information for a single parameter
     */
    interface SignatureHelpParameter {
        /**
         * The parameter's name
         */
        name: string;
        /**
         * Documentation of the parameter.
         */
        documentation: SymbolDisplayPart[];
        /**
         * Display parts of the parameter.
         */
        displayParts: SymbolDisplayPart[];
        /**
         * Whether the parameter is optional or not.
         */
        isOptional: boolean;
    }
    /**
     * Represents a single signature to show in signature help.
     */
    interface SignatureHelpItem {
        /**
         * Whether the signature accepts a variable number of arguments.
         */
        isVariadic: boolean;
        /**
         * The prefix display parts.
         */
        prefixDisplayParts: SymbolDisplayPart[];
        /**
         * The suffix display parts.
         */
        suffixDisplayParts: SymbolDisplayPart[];
        /**
         * The separator display parts.
         */
        separatorDisplayParts: SymbolDisplayPart[];
        /**
         * The signature helps items for the parameters.
         */
        parameters: SignatureHelpParameter[];
        /**
         * The signature's documentation
         */
        documentation: SymbolDisplayPart[];
        /**
         * The signature's JSDoc tags
         */
        tags: JSDocTagInfo[];
    }
    /**
     * Signature help items found in the response of a signature help request.
     */
    interface SignatureHelpItems {
        /**
         * The signature help items.
         */
        items: SignatureHelpItem[];
        /**
         * The span for which signature help should appear on a signature
         */
        applicableSpan: TextSpan;
        /**
         * The item selected in the set of available help items.
         */
        selectedItemIndex: number;
        /**
         * The argument selected in the set of parameters.
         */
        argumentIndex: number;
        /**
         * The argument count
         */
        argumentCount: number;
    }
    type SignatureHelpTriggerCharacter = "," | "(" | "<";
    type SignatureHelpRetriggerCharacter = SignatureHelpTriggerCharacter | ")";
    /**
     * Arguments of a signature help request.
     */
    interface SignatureHelpRequestArgs extends FileLocationRequestArgs {
        /**
         * Reason why signature help was invoked.
         * See each individual possible
         */
        triggerReason?: SignatureHelpTriggerReason;
    }
    type SignatureHelpTriggerReason = SignatureHelpInvokedReason | SignatureHelpCharacterTypedReason | SignatureHelpRetriggeredReason;
    /**
     * Signals that the user manually requested signature help.
     * The language service will unconditionally attempt to provide a result.
     */
    interface SignatureHelpInvokedReason {
        kind: "invoked";
        triggerCharacter?: undefined;
    }
    /**
     * Signals that the signature help request came from a user typing a character.
     * Depending on the character and the syntactic context, the request may or may not be served a result.
     */
    interface SignatureHelpCharacterTypedReason {
        kind: "characterTyped";
        /**
         * Character that was responsible for triggering signature help.
         */
        triggerCharacter: SignatureHelpTriggerCharacter;
    }
    /**
     * Signals that this signature help request came from typing a character or moving the cursor.
     * This should only occur if a signature help session was already active and the editor needs to see if it should adjust.
     * The language service will unconditionally attempt to provide a result.
     * `triggerCharacter` can be `undefined` for a retrigger caused by a cursor move.
     */
    interface SignatureHelpRetriggeredReason {
        kind: "retrigger";
        /**
         * Character that was responsible for triggering signature help.
         */
        triggerCharacter?: SignatureHelpRetriggerCharacter;
    }
    /**
     * Signature help request; value of command field is "signatureHelp".
     * Given a file location (file, line, col), return the signature
     * help.
     */
    interface SignatureHelpRequest extends FileLocationRequest {
        command: CommandTypes.SignatureHelp;
        arguments: SignatureHelpRequestArgs;
    }
    /**
     * Response object for a SignatureHelpRequest.
     */
    interface SignatureHelpResponse extends Response {
        body?: SignatureHelpItems;
    }
    /**
     * Synchronous request for semantic diagnostics of one file.
     */
    interface SemanticDiagnosticsSyncRequest extends FileRequest {
        command: CommandTypes.SemanticDiagnosticsSync;
        arguments: SemanticDiagnosticsSyncRequestArgs;
    }
    interface SemanticDiagnosticsSyncRequestArgs extends FileRequestArgs {
        includeLinePosition?: boolean;
    }
    /**
     * Response object for synchronous sematic diagnostics request.
     */
    interface SemanticDiagnosticsSyncResponse extends Response {
        body?: Diagnostic[] | DiagnosticWithLinePosition[];
    }
    interface SuggestionDiagnosticsSyncRequest extends FileRequest {
        command: CommandTypes.SuggestionDiagnosticsSync;
        arguments: SuggestionDiagnosticsSyncRequestArgs;
    }
    type SuggestionDiagnosticsSyncRequestArgs = SemanticDiagnosticsSyncRequestArgs;
    type SuggestionDiagnosticsSyncResponse = SemanticDiagnosticsSyncResponse;
    /**
     * Synchronous request for syntactic diagnostics of one file.
     */
    interface SyntacticDiagnosticsSyncRequest extends FileRequest {
        command: CommandTypes.SyntacticDiagnosticsSync;
        arguments: SyntacticDiagnosticsSyncRequestArgs;
    }
    interface SyntacticDiagnosticsSyncRequestArgs extends FileRequestArgs {
        includeLinePosition?: boolean;
    }
    /**
     * Response object for synchronous syntactic diagnostics request.
     */
    interface SyntacticDiagnosticsSyncResponse extends Response {
        body?: Diagnostic[] | DiagnosticWithLinePosition[];
    }
    /**
     * Arguments for GeterrForProject request.
     */
    interface GeterrForProjectRequestArgs {
        /**
         * the file requesting project error list
         */
        file: string;
        /**
         * Delay in milliseconds to wait before starting to compute
         * errors for the files in the file list
         */
        delay: number;
    }
    /**
     * GeterrForProjectRequest request; value of command field is
     * "geterrForProject". It works similarly with 'Geterr', only
     * it request for every file in this project.
     */
    interface GeterrForProjectRequest extends Request {
        command: CommandTypes.GeterrForProject;
        arguments: GeterrForProjectRequestArgs;
    }
    /**
     * Arguments for geterr messages.
     */
    interface GeterrRequestArgs {
        /**
         * List of file names for which to compute compiler errors.
         * The files will be checked in list order.
         */
        files: string[];
        /**
         * Delay in milliseconds to wait before starting to compute
         * errors for the files in the file list
         */
        delay: number;
    }
    /**
     * Geterr request; value of command field is "geterr". Wait for
     * delay milliseconds and then, if during the wait no change or
     * reload messages have arrived for the first file in the files
     * list, get the syntactic errors for the file, field requests,
     * and then get the semantic errors for the file.  Repeat with a
     * smaller delay for each subsequent file on the files list.  Best
     * practice for an editor is to send a file list containing each
     * file that is currently visible, in most-recently-used order.
     */
    interface GeterrRequest extends Request {
        command: CommandTypes.Geterr;
        arguments: GeterrRequestArgs;
    }
    type RequestCompletedEventName = "requestCompleted";
    /**
     * Event that is sent when server have finished processing request with specified id.
     */
    interface RequestCompletedEvent extends Event {
        event: RequestCompletedEventName;
        body: RequestCompletedEventBody;
    }
    interface RequestCompletedEventBody {
        request_seq: number;
    }
    /**
     * Item of diagnostic information found in a DiagnosticEvent message.
     */
    interface Diagnostic {
        /**
         * Starting file location at which text applies.
         */
        start: Location;
        /**
         * The last file location at which the text applies.
         */
        end: Location;
        /**
         * Text of diagnostic message.
         */
        text: string;
        /**
         * The category of the diagnostic message, e.g. "error", "warning", or "suggestion".
         */
        category: string;
        reportsUnnecessary?: {};
        /**
         * Any related spans the diagnostic may have, such as other locations relevant to an error, such as declarartion sites
         */
        relatedInformation?: DiagnosticRelatedInformation[];
        /**
         * The error code of the diagnostic message.
         */
        code?: number;
        /**
         * The name of the plugin reporting the message.
         */
        source?: string;
    }
    interface DiagnosticWithFileName extends Diagnostic {
        /**
         * Name of the file the diagnostic is in
         */
        fileName: string;
    }
    /**
     * Represents additional spans returned with a diagnostic which are relevant to it
     */
    interface DiagnosticRelatedInformation {
        /**
         * The category of the related information message, e.g. "error", "warning", or "suggestion".
         */
        category: string;
        /**
         * The code used ot identify the related information
         */
        code: number;
        /**
         * Text of related or additional information.
         */
        message: string;
        /**
         * Associated location
         */
        span?: FileSpan;
    }
    interface DiagnosticEventBody {
        /**
         * The file for which diagnostic information is reported.
         */
        file: string;
        /**
         * An array of diagnostic information items.
         */
        diagnostics: Diagnostic[];
    }
    type DiagnosticEventKind = "semanticDiag" | "syntaxDiag" | "suggestionDiag";
    /**
     * Event message for DiagnosticEventKind event types.
     * These events provide syntactic and semantic errors for a file.
     */
    interface DiagnosticEvent extends Event {
        body?: DiagnosticEventBody;
        event: DiagnosticEventKind;
    }
    interface ConfigFileDiagnosticEventBody {
        /**
         * The file which trigged the searching and error-checking of the config file
         */
        triggerFile: string;
        /**
         * The name of the found config file.
         */
        configFile: string;
        /**
         * An arry of diagnostic information items for the found config file.
         */
        diagnostics: DiagnosticWithFileName[];
    }
    /**
     * Event message for "configFileDiag" event type.
     * This event provides errors for a found config file.
     */
    interface ConfigFileDiagnosticEvent extends Event {
        body?: ConfigFileDiagnosticEventBody;
        event: "configFileDiag";
    }
    type ProjectLanguageServiceStateEventName = "projectLanguageServiceState";
    interface ProjectLanguageServiceStateEvent extends Event {
        event: ProjectLanguageServiceStateEventName;
        body?: ProjectLanguageServiceStateEventBody;
    }
    interface ProjectLanguageServiceStateEventBody {
        /**
         * Project name that has changes in the state of language service.
         * For configured projects this will be the config file path.
         * For external projects this will be the name of the projects specified when project was open.
         * For inferred projects this event is not raised.
         */
        projectName: string;
        /**
         * True if language service state switched from disabled to enabled
         * and false otherwise.
         */
        languageServiceEnabled: boolean;
    }
    type ProjectsUpdatedInBackgroundEventName = "projectsUpdatedInBackground";
    interface ProjectsUpdatedInBackgroundEvent extends Event {
        event: ProjectsUpdatedInBackgroundEventName;
        body: ProjectsUpdatedInBackgroundEventBody;
    }
    interface ProjectsUpdatedInBackgroundEventBody {
        /**
         * Current set of open files
         */
        openFiles: string[];
    }
    type ProjectLoadingStartEventName = "projectLoadingStart";
    interface ProjectLoadingStartEvent extends Event {
        event: ProjectLoadingStartEventName;
        body: ProjectLoadingStartEventBody;
    }
    interface ProjectLoadingStartEventBody {
        /** name of the project */
        projectName: string;
        /** reason for loading */
        reason: string;
    }
    type ProjectLoadingFinishEventName = "projectLoadingFinish";
    interface ProjectLoadingFinishEvent extends Event {
        event: ProjectLoadingFinishEventName;
        body: ProjectLoadingFinishEventBody;
    }
    interface ProjectLoadingFinishEventBody {
        /** name of the project */
        projectName: string;
    }
    type SurveyReadyEventName = "surveyReady";
    interface SurveyReadyEvent extends Event {
        event: SurveyReadyEventName;
        body: SurveyReadyEventBody;
    }
    interface SurveyReadyEventBody {
        /** Name of the survey. This is an internal machine- and programmer-friendly name */
        surveyId: string;
    }
    type LargeFileReferencedEventName = "largeFileReferenced";
    interface LargeFileReferencedEvent extends Event {
        event: LargeFileReferencedEventName;
        body: LargeFileReferencedEventBody;
    }
    interface LargeFileReferencedEventBody {
        /**
         * name of the large file being loaded
         */
        file: string;
        /**
         * size of the file
         */
        fileSize: number;
        /**
         * max file size allowed on the server
         */
        maxFileSize: number;
    }
    /**
     * Arguments for reload request.
     */
    interface ReloadRequestArgs extends FileRequestArgs {
        /**
         * Name of temporary file from which to reload file
         * contents. May be same as file.
         */
        tmpfile: string;
    }
    /**
     * Reload request message; value of command field is "reload".
     * Reload contents of file with name given by the 'file' argument
     * from temporary file with name given by the 'tmpfile' argument.
     * The two names can be identical.
     */
    interface ReloadRequest extends FileRequest {
        command: CommandTypes.Reload;
        arguments: ReloadRequestArgs;
    }
    /**
     * Response to "reload" request. This is just an acknowledgement, so
     * no body field is required.
     */
    interface ReloadResponse extends Response {
    }
    /**
     * Arguments for saveto request.
     */
    interface SavetoRequestArgs extends FileRequestArgs {
        /**
         * Name of temporary file into which to save server's view of
         * file contents.
         */
        tmpfile: string;
    }
    /**
     * Saveto request message; value of command field is "saveto".
     * For debugging purposes, save to a temporaryfile (named by
     * argument 'tmpfile') the contents of file named by argument
     * 'file'.  The server does not currently send a response to a
     * "saveto" request.
     */
    interface SavetoRequest extends FileRequest {
        command: CommandTypes.Saveto;
        arguments: SavetoRequestArgs;
    }
    /**
     * Arguments for navto request message.
     */
    interface NavtoRequestArgs extends FileRequestArgs {
        /**
         * Search term to navigate to from current location; term can
         * be '.*' or an identifier prefix.
         */
        searchValue: string;
        /**
         *  Optional limit on the number of items to return.
         */
        maxResultCount?: number;
        /**
         * Optional flag to indicate we want results for just the current file
         * or the entire project.
         */
        currentFileOnly?: boolean;
        projectFileName?: string;
    }
    /**
     * Navto request message; value of command field is "navto".
     * Return list of objects giving file locations and symbols that
     * match the search term given in argument 'searchTerm'.  The
     * context for the search is given by the named file.
     */
    interface NavtoRequest extends FileRequest {
        command: CommandTypes.Navto;
        arguments: NavtoRequestArgs;
    }
    /**
     * An item found in a navto response.
     */
    interface NavtoItem extends FileSpan {
        /**
         * The symbol's name.
         */
        name: string;
        /**
         * The symbol's kind (such as 'className' or 'parameterName').
         */
        kind: ScriptElementKind;
        /**
         * exact, substring, or prefix.
         */
        matchKind: string;
        /**
         * If this was a case sensitive or insensitive match.
         */
        isCaseSensitive: boolean;
        /**
         * Optional modifiers for the kind (such as 'public').
         */
        kindModifiers?: string;
        /**
         * Name of symbol's container symbol (if any); for example,
         * the class name if symbol is a class member.
         */
        containerName?: string;
        /**
         * Kind of symbol's container symbol (if any).
         */
        containerKind?: ScriptElementKind;
    }
    /**
     * Navto response message. Body is an array of navto items.  Each
     * item gives a symbol that matched the search term.
     */
    interface NavtoResponse extends Response {
        body?: NavtoItem[];
    }
    /**
     * Arguments for change request message.
     */
    interface ChangeRequestArgs extends FormatRequestArgs {
        /**
         * Optional string to insert at location (file, line, offset).
         */
        insertString?: string;
    }
    /**
     * Change request message; value of command field is "change".
     * Update the server's view of the file named by argument 'file'.
     * Server does not currently send a response to a change request.
     */
    interface ChangeRequest extends FileLocationRequest {
        command: CommandTypes.Change;
        arguments: ChangeRequestArgs;
    }
    /**
     * Response to "brace" request.
     */
    interface BraceResponse extends Response {
        body?: TextSpan[];
    }
    /**
     * Brace matching request; value of command field is "brace".
     * Return response giving the file locations of matching braces
     * found in file at location line, offset.
     */
    interface BraceRequest extends FileLocationRequest {
        command: CommandTypes.Brace;
    }
    /**
     * NavBar items request; value of command field is "navbar".
     * Return response giving the list of navigation bar entries
     * extracted from the requested file.
     */
    interface NavBarRequest extends FileRequest {
        command: CommandTypes.NavBar;
    }
    /**
     * NavTree request; value of command field is "navtree".
     * Return response giving the navigation tree of the requested file.
     */
    interface NavTreeRequest extends FileRequest {
        command: CommandTypes.NavTree;
    }
    interface NavigationBarItem {
        /**
         * The item's display text.
         */
        text: string;
        /**
         * The symbol's kind (such as 'className' or 'parameterName').
         */
        kind: ScriptElementKind;
        /**
         * Optional modifiers for the kind (such as 'public').
         */
        kindModifiers?: string;
        /**
         * The definition locations of the item.
         */
        spans: TextSpan[];
        /**
         * Optional children.
         */
        childItems?: NavigationBarItem[];
        /**
         * Number of levels deep this item should appear.
         */
        indent: number;
    }
    /** protocol.NavigationTree is identical to ts.NavigationTree, except using protocol.TextSpan instead of ts.TextSpan */
    interface NavigationTree {
        text: string;
        kind: ScriptElementKind;
        kindModifiers: string;
        spans: TextSpan[];
        nameSpan: TextSpan | undefined;
        childItems?: NavigationTree[];
    }
    type TelemetryEventName = "telemetry";
    interface TelemetryEvent extends Event {
        event: TelemetryEventName;
        body: TelemetryEventBody;
    }
    interface TelemetryEventBody {
        telemetryEventName: string;
        payload: any;
    }
    type TypesInstallerInitializationFailedEventName = "typesInstallerInitializationFailed";
    interface TypesInstallerInitializationFailedEvent extends Event {
        event: TypesInstallerInitializationFailedEventName;
        body: TypesInstallerInitializationFailedEventBody;
    }
    interface TypesInstallerInitializationFailedEventBody {
        message: string;
    }
    type TypingsInstalledTelemetryEventName = "typingsInstalled";
    interface TypingsInstalledTelemetryEventBody extends TelemetryEventBody {
        telemetryEventName: TypingsInstalledTelemetryEventName;
        payload: TypingsInstalledTelemetryEventPayload;
    }
    interface TypingsInstalledTelemetryEventPayload {
        /**
         * Comma separated list of installed typing packages
         */
        installedPackages: string;
        /**
         * true if install request succeeded, otherwise - false
         */
        installSuccess: boolean;
        /**
         * version of typings installer
         */
        typingsInstallerVersion: string;
    }
    type BeginInstallTypesEventName = "beginInstallTypes";
    type EndInstallTypesEventName = "endInstallTypes";
    interface BeginInstallTypesEvent extends Event {
        event: BeginInstallTypesEventName;
        body: BeginInstallTypesEventBody;
    }
    interface EndInstallTypesEvent extends Event {
        event: EndInstallTypesEventName;
        body: EndInstallTypesEventBody;
    }
    interface InstallTypesEventBody {
        /**
         * correlation id to match begin and end events
         */
        eventId: number;
        /**
         * list of packages to install
         */
        packages: ReadonlyArray<string>;
    }
    interface BeginInstallTypesEventBody extends InstallTypesEventBody {
    }
    interface EndInstallTypesEventBody extends InstallTypesEventBody {
        /**
         * true if installation succeeded, otherwise false
         */
        success: boolean;
    }
    interface NavBarResponse extends Response {
        body?: NavigationBarItem[];
    }
    interface NavTreeResponse extends Response {
        body?: NavigationTree;
    }
    enum IndentStyle {
        None = "None",
        Block = "Block",
        Smart = "Smart"
    }
    interface EditorSettings {
        baseIndentSize?: number;
        indentSize?: number;
        tabSize?: number;
        newLineCharacter?: string;
        convertTabsToSpaces?: boolean;
        indentStyle?: IndentStyle | ts.IndentStyle;
    }
    interface FormatCodeSettings extends EditorSettings {
        insertSpaceAfterCommaDelimiter?: boolean;
        insertSpaceAfterSemicolonInForStatements?: boolean;
        insertSpaceBeforeAndAfterBinaryOperators?: boolean;
        insertSpaceAfterConstructor?: boolean;
        insertSpaceAfterKeywordsInControlFlowStatements?: boolean;
        insertSpaceAfterFunctionKeywordForAnonymousFunctions?: boolean;
        insertSpaceAfterOpeningAndBeforeClosingNonemptyParenthesis?: boolean;
        insertSpaceAfterOpeningAndBeforeClosingNonemptyBrackets?: boolean;
        insertSpaceAfterOpeningAndBeforeClosingNonemptyBraces?: boolean;
        insertSpaceAfterOpeningAndBeforeClosingTemplateStringBraces?: boolean;
        insertSpaceAfterOpeningAndBeforeClosingJsxExpressionBraces?: boolean;
        insertSpaceAfterTypeAssertion?: boolean;
        insertSpaceBeforeFunctionParenthesis?: boolean;
        placeOpenBraceOnNewLineForFunctions?: boolean;
        placeOpenBraceOnNewLineForControlBlocks?: boolean;
        insertSpaceBeforeTypeAnnotation?: boolean;
    }
    interface UserPreferences {
        readonly disableSuggestions?: boolean;
        readonly quotePreference?: "auto" | "double" | "single";
        /**
         * If enabled, TypeScript will search through all external modules' exports and add them to the completions list.
         * This affects lone identifier completions but not completions on the right hand side of `obj.`.
         */
        readonly includeCompletionsForModuleExports?: boolean;
        /**
         * If enabled, the completion list will include completions with invalid identifier names.
         * For those entries, The `insertText` and `replacementSpan` properties will be set to change from `.x` property access to `["x"]`.
         */
        readonly includeCompletionsWithInsertText?: boolean;
        readonly importModuleSpecifierPreference?: "relative" | "non-relative";
        readonly allowTextChangesInNewFiles?: boolean;
        readonly lazyConfiguredProjectsFromExternalProject?: boolean;
        readonly providePrefixAndSuffixTextForRename?: boolean;
        readonly allowRenameOfImportPath?: boolean;
    }
    interface CompilerOptions {
        allowJs?: boolean;
        allowSyntheticDefaultImports?: boolean;
        allowUnreachableCode?: boolean;
        allowUnusedLabels?: boolean;
        alwaysStrict?: boolean;
        baseUrl?: string;
        charset?: string;
        checkJs?: boolean;
        declaration?: boolean;
        declarationDir?: string;
        disableSizeLimit?: boolean;
        downlevelIteration?: boolean;
        emitBOM?: boolean;
        emitDecoratorMetadata?: boolean;
        experimentalDecorators?: boolean;
        forceConsistentCasingInFileNames?: boolean;
        importHelpers?: boolean;
        inlineSourceMap?: boolean;
        inlineSources?: boolean;
        isolatedModules?: boolean;
        jsx?: JsxEmit | ts.JsxEmit;
        lib?: string[];
        locale?: string;
        mapRoot?: string;
        maxNodeModuleJsDepth?: number;
        module?: ModuleKind | ts.ModuleKind;
        moduleResolution?: ModuleResolutionKind | ts.ModuleResolutionKind;
        newLine?: NewLineKind | ts.NewLineKind;
        noEmit?: boolean;
        noEmitHelpers?: boolean;
        noEmitOnError?: boolean;
        noErrorTruncation?: boolean;
        noFallthroughCasesInSwitch?: boolean;
        noImplicitAny?: boolean;
        noImplicitReturns?: boolean;
        noImplicitThis?: boolean;
        noUnusedLocals?: boolean;
        noUnusedParameters?: boolean;
        noImplicitUseStrict?: boolean;
        noLib?: boolean;
        noResolve?: boolean;
        out?: string;
        outDir?: string;
        outFile?: string;
        paths?: MapLike<string[]>;
        plugins?: PluginImport[];
        preserveConstEnums?: boolean;
        preserveSymlinks?: boolean;
        project?: string;
        reactNamespace?: string;
        removeComments?: boolean;
        references?: ProjectReference[];
        rootDir?: string;
        rootDirs?: string[];
        skipLibCheck?: boolean;
        skipDefaultLibCheck?: boolean;
        sourceMap?: boolean;
        sourceRoot?: string;
        strict?: boolean;
        strictNullChecks?: boolean;
        suppressExcessPropertyErrors?: boolean;
        suppressImplicitAnyIndexErrors?: boolean;
        target?: ScriptTarget | ts.ScriptTarget;
        traceResolution?: boolean;
        resolveJsonModule?: boolean;
        types?: string[];
        /** Paths used to used to compute primary types search locations */
        typeRoots?: string[];
        [option: string]: CompilerOptionsValue | undefined;
    }
    enum JsxEmit {
        None = "None",
        Preserve = "Preserve",
        ReactNative = "ReactNative",
        React = "React"
    }
    enum ModuleKind {
        None = "None",
        CommonJS = "CommonJS",
        AMD = "AMD",
        UMD = "UMD",
        System = "System",
        ES6 = "ES6",
        ES2015 = "ES2015",
        ESNext = "ESNext"
    }
    enum ModuleResolutionKind {
        Classic = "Classic",
        Node = "Node"
    }
    enum NewLineKind {
        Crlf = "Crlf",
        Lf = "Lf"
    }
    enum ScriptTarget {
        ES3 = "ES3",
        ES5 = "ES5",
        ES6 = "ES6",
        ES2015 = "ES2015",
        ES2016 = "ES2016",
        ES2017 = "ES2017",
        ES2018 = "ES2018",
        ES2019 = "ES2019",
        ES2020 = "ES2020",
        ESNext = "ESNext"
    }
}
declare namespace ts.server {
    interface ScriptInfoVersion {
        svc: number;
        text: number;
    }
    class ScriptInfo {
        private readonly host;
        readonly fileName: NormalizedPath;
        readonly scriptKind: ScriptKind;
        readonly hasMixedContent: boolean;
        readonly path: Path;
        /**
         * All projects that include this file
         */
        readonly containingProjects: Project[];
        private formatSettings;
        private preferences;
        private textStorage;
        constructor(host: ServerHost, fileName: NormalizedPath, scriptKind: ScriptKind, hasMixedContent: boolean, path: Path, initialVersion?: ScriptInfoVersion);
        isScriptOpen(): boolean;
        open(newText: string): void;
        close(fileExists?: boolean): void;
        getSnapshot(): IScriptSnapshot;
        private ensureRealPath;
        getFormatCodeSettings(): FormatCodeSettings | undefined;
        getPreferences(): protocol.UserPreferences | undefined;
        attachToProject(project: Project): boolean;
        isAttached(project: Project): boolean;
        detachFromProject(project: Project): void;
        detachAllProjects(): void;
        getDefaultProject(): Project;
        registerFileUpdate(): void;
        setOptions(formatSettings: FormatCodeSettings, preferences: protocol.UserPreferences | undefined): void;
        getLatestVersion(): string;
        saveTo(fileName: string): void;
        reloadFromFile(tempFileName?: NormalizedPath): boolean;
        editContent(start: number, end: number, newText: string): void;
        markContainingProjectsAsDirty(): void;
        isOrphan(): boolean;
        /**
         *  @param line 1 based index
         */
        lineToTextSpan(line: number): TextSpan;
        /**
         * @param line 1 based index
         * @param offset 1 based index
         */
        lineOffsetToPosition(line: number, offset: number): number;
        positionToLineOffset(position: number): protocol.Location;
        isJavaScript(): boolean;
    }
}
declare namespace ts.server {
    interface InstallPackageOptionsWithProject extends InstallPackageOptions {
        projectName: string;
        projectRootPath: Path;
    }
    interface ITypingsInstaller {
        isKnownTypesPackageName(name: string): boolean;
        installPackage(options: InstallPackageOptionsWithProject): Promise<ApplyCodeActionCommandResult>;
        enqueueInstallTypingsRequest(p: Project, typeAcquisition: TypeAcquisition, unresolvedImports: SortedReadonlyArray<string> | undefined): void;
        attach(projectService: ProjectService): void;
        onProjectClosed(p: Project): void;
        readonly globalTypingsCacheLocation: string | undefined;
    }
    const nullTypingsInstaller: ITypingsInstaller;
}
declare namespace ts.server {
    enum ProjectKind {
        Inferred = 0,
        Configured = 1,
        External = 2
    }
    function allRootFilesAreJsOrDts(project: Project): boolean;
    function allFilesAreJsOrDts(project: Project): boolean;
    interface PluginCreateInfo {
        project: Project;
        languageService: LanguageService;
        languageServiceHost: LanguageServiceHost;
        serverHost: ServerHost;
        config: any;
    }
    interface PluginModule {
        create(createInfo: PluginCreateInfo): LanguageService;
        getExternalFiles?(proj: Project): string[];
        onConfigurationChanged?(config: any): void;
    }
    interface PluginModuleWithName {
        name: string;
        module: PluginModule;
    }
    type PluginModuleFactory = (mod: {
        typescript: typeof ts;
    }) => PluginModule;
    /**
     * The project root can be script info - if root is present,
     * or it could be just normalized path if root wasnt present on the host(only for non inferred project)
     */
    type ProjectRoot = ScriptInfo | NormalizedPath;
    abstract class Project implements LanguageServiceHost, ModuleResolutionHost {
        readonly projectName: string;
        readonly projectKind: ProjectKind;
        readonly projectService: ProjectService;
        private documentRegistry;
        private compilerOptions;
        compileOnSaveEnabled: boolean;
        private rootFiles;
        private rootFilesMap;
        private program;
        private externalFiles;
        private missingFilesMap;
        private plugins;
        private lastFileExceededProgramSize;
        protected languageService: LanguageService;
        languageServiceEnabled: boolean;
        readonly trace?: (s: string) => void;
        readonly realpath?: (path: string) => string;
        private builderState;
        /**
         * Set of files names that were updated since the last call to getChangesSinceVersion.
         */
        private updatedFileNames;
        /**
         * Set of files that was returned from the last call to getChangesSinceVersion.
         */
        private lastReportedFileNames;
        /**
         * Last version that was reported.
         */
        private lastReportedVersion;
        /**
         * Current project's program version. (incremented everytime new program is created that is not complete reuse from the old one)
         * This property is changed in 'updateGraph' based on the set of files in program
         */
        private projectProgramVersion;
        /**
         * Current version of the project state. It is changed when:
         * - new root file was added/removed
         * - edit happen in some file that is currently included in the project.
         * This property is different from projectStructureVersion since in most cases edits don't affect set of files in the project
         */
        private projectStateVersion;
        protected isInitialLoadPending: () => boolean;
        private readonly cancellationToken;
        isNonTsProject(): boolean;
        isJsOnlyProject(): boolean;
        static resolveModule(moduleName: string, initialDir: string, host: ServerHost, log: (message: string) => void, logErrors?: (message: string) => void): {} | undefined;
        isKnownTypesPackageName(name: string): boolean;
        installPackage(options: InstallPackageOptions): Promise<ApplyCodeActionCommandResult>;
        private readonly typingsCache;
        getCompilationSettings(): CompilerOptions;
        getCompilerOptions(): CompilerOptions;
        getNewLine(): string;
        getProjectVersion(): string;
        getProjectReferences(): ReadonlyArray<ProjectReference> | undefined;
        getScriptFileNames(): string[];
        private getOrCreateScriptInfoAndAttachToProject;
        getScriptKind(fileName: string): ScriptKind;
        getScriptVersion(filename: string): string;
        getScriptSnapshot(filename: string): IScriptSnapshot | undefined;
        getCancellationToken(): HostCancellationToken;
        getCurrentDirectory(): string;
        getDefaultLibFileName(): string;
        useCaseSensitiveFileNames(): boolean;
        readDirectory(path: string, extensions?: ReadonlyArray<string>, exclude?: ReadonlyArray<string>, include?: ReadonlyArray<string>, depth?: number): string[];
        readFile(fileName: string): string | undefined;
        writeFile(fileName: string, content: string): void;
        fileExists(file: string): boolean;
        resolveModuleNames(moduleNames: string[], containingFile: string, reusedNames?: string[], redirectedReference?: ResolvedProjectReference): (ResolvedModuleFull | undefined)[];
        getResolvedModuleWithFailedLookupLocationsFromCache(moduleName: string, containingFile: string): ResolvedModuleWithFailedLookupLocations | undefined;
        resolveTypeReferenceDirectives(typeDirectiveNames: string[], containingFile: string, redirectedReference?: ResolvedProjectReference): (ResolvedTypeReferenceDirective | undefined)[];
        directoryExists(path: string): boolean;
        getDirectories(path: string): string[];
        log(s: string): void;
        error(s: string): void;
        private setInternalCompilerOptionsForEmittingJsFiles;
        /**
         * Get the errors that dont have any file name associated
         */
        getGlobalProjectErrors(): ReadonlyArray<Diagnostic>;
        getAllProjectErrors(): ReadonlyArray<Diagnostic>;
        getLanguageService(ensureSynchronized?: boolean): LanguageService;
        private shouldEmitFile;
        getCompileOnSaveAffectedFileList(scriptInfo: ScriptInfo): string[];
        /**
         * Returns true if emit was conducted
         */
        emitFile(scriptInfo: ScriptInfo, writeFile: (path: string, data: string, writeByteOrderMark?: boolean) => void): boolean;
        enableLanguageService(): void;
        disableLanguageService(lastFileExceededProgramSize?: string): void;
        getProjectName(): string;
        abstract getTypeAcquisition(): TypeAcquisition;
        protected removeLocalTypingsFromTypeAcquisition(newTypeAcquisition: TypeAcquisition): TypeAcquisition;
        getExternalFiles(): SortedReadonlyArray<string>;
        getSourceFile(path: Path): SourceFile | undefined;
        close(): void;
        private detachScriptInfoIfNotRoot;
        isClosed(): boolean;
        hasRoots(): boolean;
        getRootFiles(): NormalizedPath[];
        getRootScriptInfos(): ScriptInfo[];
        getScriptInfos(): ScriptInfo[];
        getExcludedFiles(): ReadonlyArray<NormalizedPath>;
        getFileNames(excludeFilesFromExternalLibraries?: boolean, excludeConfigFiles?: boolean): NormalizedPath[];
        hasConfigFile(configFilePath: NormalizedPath): boolean;
        containsScriptInfo(info: ScriptInfo): boolean;
        containsFile(filename: NormalizedPath, requireOpen?: boolean): boolean;
        isRoot(info: ScriptInfo): boolean;
        addRoot(info: ScriptInfo): void;
        addMissingFileRoot(fileName: NormalizedPath): void;
        removeFile(info: ScriptInfo, fileExists: boolean, detachFromProject: boolean): void;
        registerFileUpdate(fileName: string): void;
        markAsDirty(): void;
        /**
         * Updates set of files that contribute to this project
         * @returns: true if set of files in the project stays the same and false - otherwise.
         */
        updateGraph(): boolean;
        protected removeExistingTypings(include: string[]): string[];
        private updateGraphWorker;
        private detachScriptInfoFromProject;
        private addMissingFileWatcher;
        private isWatchedMissingFile;
        getScriptInfoForNormalizedPath(fileName: NormalizedPath): ScriptInfo | undefined;
        getScriptInfo(uncheckedFileName: string): ScriptInfo | undefined;
        filesToString(writeProjectFileNames: boolean): string;
        setCompilerOptions(compilerOptions: CompilerOptions): void;
        protected removeRoot(info: ScriptInfo): void;
        protected enableGlobalPlugins(options: CompilerOptions, pluginConfigOverrides: Map<any> | undefined): void;
        protected enablePlugin(pluginConfigEntry: PluginImport, searchPaths: string[], pluginConfigOverrides: Map<any> | undefined): void;
        private enableProxy;
        /** Starts a new check for diagnostics. Call this if some file has updated that would cause diagnostics to be changed. */
        refreshDiagnostics(): void;
    }
    /**
     * If a file is opened and no tsconfig (or jsconfig) is found,
     * the file and its imports/references are put into an InferredProject.
     */
    class InferredProject extends Project {
        private static readonly newName;
        private _isJsInferredProject;
        toggleJsInferredProject(isJsInferredProject: boolean): void;
        setCompilerOptions(options?: CompilerOptions): void;
        /** this is canonical project root path */
        readonly projectRootPath: string | undefined;
        addRoot(info: ScriptInfo): void;
        removeRoot(info: ScriptInfo): void;
        isProjectWithSingleRoot(): boolean;
        close(): void;
        getTypeAcquisition(): TypeAcquisition;
    }
    /**
     * If a file is opened, the server will look for a tsconfig (or jsconfig)
     * and if successfull create a ConfiguredProject for it.
     * Otherwise it will create an InferredProject.
     */
    class ConfiguredProject extends Project {
        private typeAcquisition;
        private directoriesWatchedForWildcards;
        readonly canonicalConfigFilePath: NormalizedPath;
        /** Ref count to the project when opened from external project */
        private externalProjectRefCount;
        private projectErrors;
        private projectReferences;
        protected isInitialLoadPending: () => boolean;
        /**
         * If the project has reload from disk pending, it reloads (and then updates graph as part of that) instead of just updating the graph
         * @returns: true if set of files in the project stays the same and false - otherwise.
         */
        updateGraph(): boolean;
        getConfigFilePath(): NormalizedPath;
        getProjectReferences(): ReadonlyArray<ProjectReference> | undefined;
        updateReferences(refs: ReadonlyArray<ProjectReference> | undefined): void;
        /**
         * Get the errors that dont have any file name associated
         */
        getGlobalProjectErrors(): ReadonlyArray<Diagnostic>;
        /**
         * Get all the project errors
         */
        getAllProjectErrors(): ReadonlyArray<Diagnostic>;
        setProjectErrors(projectErrors: Diagnostic[]): void;
        setTypeAcquisition(newTypeAcquisition: TypeAcquisition): void;
        getTypeAcquisition(): TypeAcquisition;
        close(): void;
        getEffectiveTypeRoots(): string[];
    }
    /**
     * Project whose configuration is handled externally, such as in a '.csproj'.
     * These are created only if a host explicitly calls `openExternalProject`.
     */
    class ExternalProject extends Project {
        externalProjectName: string;
        compileOnSaveEnabled: boolean;
        excludedFiles: ReadonlyArray<NormalizedPath>;
        private typeAcquisition;
        updateGraph(): boolean;
        getExcludedFiles(): readonly NormalizedPath[];
        getTypeAcquisition(): TypeAcquisition;
        setTypeAcquisition(newTypeAcquisition: TypeAcquisition): void;
    }
}
declare namespace ts.server {
    const maxProgramSizeForNonTsFiles: number;
    const ProjectsUpdatedInBackgroundEvent = "projectsUpdatedInBackground";
    const ProjectLoadingStartEvent = "projectLoadingStart";
    const ProjectLoadingFinishEvent = "projectLoadingFinish";
    const LargeFileReferencedEvent = "largeFileReferenced";
    const ConfigFileDiagEvent = "configFileDiag";
    const ProjectLanguageServiceStateEvent = "projectLanguageServiceState";
    const ProjectInfoTelemetryEvent = "projectInfo";
    const OpenFileInfoTelemetryEvent = "openFileInfo";
    interface ProjectsUpdatedInBackgroundEvent {
        eventName: typeof ProjectsUpdatedInBackgroundEvent;
        data: {
            openFiles: string[];
        };
    }
    interface ProjectLoadingStartEvent {
        eventName: typeof ProjectLoadingStartEvent;
        data: {
            project: Project;
            reason: string;
        };
    }
    interface ProjectLoadingFinishEvent {
        eventName: typeof ProjectLoadingFinishEvent;
        data: {
            project: Project;
        };
    }
    interface LargeFileReferencedEvent {
        eventName: typeof LargeFileReferencedEvent;
        data: {
            file: string;
            fileSize: number;
            maxFileSize: number;
        };
    }
    interface ConfigFileDiagEvent {
        eventName: typeof ConfigFileDiagEvent;
        data: {
            triggerFile: string;
            configFileName: string;
            diagnostics: ReadonlyArray<Diagnostic>;
        };
    }
    interface ProjectLanguageServiceStateEvent {
        eventName: typeof ProjectLanguageServiceStateEvent;
        data: {
            project: Project;
            languageServiceEnabled: boolean;
        };
    }
    /** This will be converted to the payload of a protocol.TelemetryEvent in session.defaultEventHandler. */
    interface ProjectInfoTelemetryEvent {
        readonly eventName: typeof ProjectInfoTelemetryEvent;
        readonly data: ProjectInfoTelemetryEventData;
    }
    interface ProjectInfoTelemetryEventData {
        /** Cryptographically secure hash of project file location. */
        readonly projectId: string;
        /** Count of file extensions seen in the project. */
        readonly fileStats: FileStats;
        /**
         * Any compiler options that might contain paths will be taken out.
         * Enum compiler options will be converted to strings.
         */
        readonly compilerOptions: CompilerOptions;
        readonly extends: boolean | undefined;
        readonly files: boolean | undefined;
        readonly include: boolean | undefined;
        readonly exclude: boolean | undefined;
        readonly compileOnSave: boolean;
        readonly typeAcquisition: ProjectInfoTypeAcquisitionData;
        readonly configFileName: "tsconfig.json" | "jsconfig.json" | "other";
        readonly projectType: "external" | "configured";
        readonly languageServiceEnabled: boolean;
        /** TypeScript version used by the server. */
        readonly version: string;
    }
    /**
     * Info that we may send about a file that was just opened.
     * Info about a file will only be sent once per session, even if the file changes in ways that might affect the info.
     * Currently this is only sent for '.js' files.
     */
    interface OpenFileInfoTelemetryEvent {
        readonly eventName: typeof OpenFileInfoTelemetryEvent;
        readonly data: OpenFileInfoTelemetryEventData;
    }
    interface OpenFileInfoTelemetryEventData {
        readonly info: OpenFileInfo;
    }
    interface ProjectInfoTypeAcquisitionData {
        readonly enable: boolean | undefined;
        readonly include: boolean;
        readonly exclude: boolean;
    }
    interface FileStats {
        readonly js: number;
        readonly jsSize?: number;
        readonly jsx: number;
        readonly jsxSize?: number;
        readonly ts: number;
        readonly tsSize?: number;
        readonly tsx: number;
        readonly tsxSize?: number;
        readonly dts: number;
        readonly dtsSize?: number;
        readonly deferred: number;
        readonly deferredSize?: number;
    }
    interface OpenFileInfo {
        readonly checkJs: boolean;
    }
    type ProjectServiceEvent = LargeFileReferencedEvent | ProjectsUpdatedInBackgroundEvent | ProjectLoadingStartEvent | ProjectLoadingFinishEvent | ConfigFileDiagEvent | ProjectLanguageServiceStateEvent | ProjectInfoTelemetryEvent | OpenFileInfoTelemetryEvent;
    type ProjectServiceEventHandler = (event: ProjectServiceEvent) => void;
    interface SafeList {
        [name: string]: {
            match: RegExp;
            exclude?: (string | number)[][];
            types?: string[];
        };
    }
    interface TypesMapFile {
        typesMap: SafeList;
        simpleMap: {
            [libName: string]: string;
        };
    }
    function convertFormatOptions(protocolOptions: protocol.FormatCodeSettings): FormatCodeSettings;
    function convertCompilerOptions(protocolOptions: protocol.ExternalProjectCompilerOptions): CompilerOptions & protocol.CompileOnSaveMixin;
    function tryConvertScriptKindName(scriptKindName: protocol.ScriptKindName | ScriptKind): ScriptKind;
    function convertScriptKindName(scriptKindName: protocol.ScriptKindName): ScriptKind.Unknown | ScriptKind.JS | ScriptKind.JSX | ScriptKind.TS | ScriptKind.TSX;
    interface HostConfiguration {
        formatCodeOptions: FormatCodeSettings;
        preferences: protocol.UserPreferences;
        hostInfo: string;
        extraFileExtensions?: FileExtensionInfo[];
    }
    interface OpenConfiguredProjectResult {
        configFileName?: NormalizedPath;
        configFileErrors?: ReadonlyArray<Diagnostic>;
    }
    interface ProjectServiceOptions {
        host: ServerHost;
        logger: Logger;
        cancellationToken: HostCancellationToken;
        useSingleInferredProject: boolean;
        useInferredProjectPerProjectRoot: boolean;
        typingsInstaller: ITypingsInstaller;
        eventHandler?: ProjectServiceEventHandler;
        suppressDiagnosticEvents?: boolean;
        throttleWaitMilliseconds?: number;
        globalPlugins?: ReadonlyArray<string>;
        pluginProbeLocations?: ReadonlyArray<string>;
        allowLocalPluginLoads?: boolean;
        typesMapLocation?: string;
        syntaxOnly?: boolean;
    }
    class ProjectService {
        private readonly scriptInfoInNodeModulesWatchers;
        /**
         * Contains all the deleted script info's version information so that
         * it does not reset when creating script info again
         * (and could have potentially collided with version where contents mismatch)
         */
        private readonly filenameToScriptInfoVersion;
        private readonly allJsFilesForOpenFileTelemetry;
        /**
         * maps external project file name to list of config files that were the part of this project
         */
        private readonly externalProjectToConfiguredProjectMap;
        /**
         * external projects (configuration and list of root files is not controlled by tsserver)
         */
        readonly externalProjects: ExternalProject[];
        /**
         * projects built from openFileRoots
         */
        readonly inferredProjects: InferredProject[];
        /**
         * projects specified by a tsconfig.json file
         */
        readonly configuredProjects: Map<ConfiguredProject>;
        /**
         * Open files: with value being project root path, and key being Path of the file that is open
         */
        readonly openFiles: Map<NormalizedPath | undefined>;
        /**
         * Map of open files that are opened without complete path but have projectRoot as current directory
         */
        private readonly openFilesWithNonRootedDiskPath;
        private compilerOptionsForInferredProjects;
        private compilerOptionsForInferredProjectsPerProjectRoot;
        /**
         * Project size for configured or external projects
         */
        private readonly projectToSizeMap;
        /**
         * This is a map of config file paths existance that doesnt need query to disk
         * - The entry can be present because there is inferred project that needs to watch addition of config file to directory
         *   In this case the exists could be true/false based on config file is present or not
         * - Or it is present if we have configured project open with config file at that location
         *   In this case the exists property is always true
         */
        private readonly configFileExistenceInfoCache;
        private readonly throttledOperations;
        private readonly hostConfiguration;
        private safelist;
        private readonly legacySafelist;
        private pendingProjectUpdates;
        readonly currentDirectory: NormalizedPath;
        readonly toCanonicalFileName: (f: string) => string;
        readonly host: ServerHost;
        readonly logger: Logger;
        readonly cancellationToken: HostCancellationToken;
        readonly useSingleInferredProject: boolean;
        readonly useInferredProjectPerProjectRoot: boolean;
        readonly typingsInstaller: ITypingsInstaller;
        private readonly globalCacheLocationDirectoryPath;
        readonly throttleWaitMilliseconds?: number;
        private readonly eventHandler?;
        private readonly suppressDiagnosticEvents?;
        readonly globalPlugins: ReadonlyArray<string>;
        readonly pluginProbeLocations: ReadonlyArray<string>;
        readonly allowLocalPluginLoads: boolean;
        private currentPluginConfigOverrides;
        readonly typesMapLocation: string | undefined;
        readonly syntaxOnly?: boolean;
        /** Tracks projects that we have already sent telemetry for. */
        private readonly seenProjects;
        constructor(opts: ProjectServiceOptions);
        toPath(fileName: string): Path;
        private loadTypesMap;
        updateTypingsForProject(response: SetTypings | InvalidateCachedTypings | PackageInstalledResponse): void;
        private delayEnsureProjectForOpenFiles;
        private delayUpdateProjectGraph;
        private delayUpdateProjectGraphs;
        setCompilerOptionsForInferredProjects(projectCompilerOptions: protocol.ExternalProjectCompilerOptions, projectRootPath?: string): void;
        findProject(projectName: string): Project | undefined;
        getDefaultProjectForFile(fileName: NormalizedPath, ensureProject: boolean): Project | undefined;
        private doEnsureDefaultProjectForFile;
        getScriptInfoEnsuringProjectsUptoDate(uncheckedFileName: string): ScriptInfo | undefined;
        /**
         * Ensures the project structures are upto date
         * This means,
         * - we go through all the projects and update them if they are dirty
         * - if updates reflect some change in structure or there was pending request to ensure projects for open files
         *   ensure that each open script info has project
         */
        private ensureProjectStructuresUptoDate;
        getFormatCodeOptions(file: NormalizedPath): FormatCodeSettings;
        getPreferences(file: NormalizedPath): protocol.UserPreferences;
        getHostFormatCodeOptions(): FormatCodeSettings;
        getHostPreferences(): protocol.UserPreferences;
        private onSourceFileChanged;
        private handleSourceMapProjects;
        private delayUpdateSourceInfoProjects;
        private delayUpdateProjectsOfScriptInfoPath;
        private handleDeletedFile;
        private onConfigChangedForConfiguredProject;
        /**
         * This is the callback function for the config file add/remove/change at any location
         * that matters to open script info but doesnt have configured project open
         * for the config file
         */
        private onConfigFileChangeForOpenScriptInfo;
        private removeProject;
        private assignOrphanScriptInfosToInferredProject;
        /**
         * Remove this file from the set of open, non-configured files.
         * @param info The file that has been closed or newly configured
         */
        private closeOpenFile;
        private deleteScriptInfo;
        private configFileExists;
        private setConfigFileExistenceByNewConfiguredProject;
        /**
         * Returns true if the configFileExistenceInfo is needed/impacted by open files that are root of inferred project
         */
        private configFileExistenceImpactsRootOfInferredProject;
        private setConfigFileExistenceInfoByClosedConfiguredProject;
        private logConfigFileWatchUpdate;
        /**
         * Create the watcher for the configFileExistenceInfo
         */
        private createConfigFileWatcherOfConfigFileExistence;
        /**
         * Close the config file watcher in the cached ConfigFileExistenceInfo
         *   if there arent any open files that are root of inferred project
         */
        private closeConfigFileWatcherOfConfigFileExistenceInfo;
        /**
         * This is called on file close, so that we stop watching the config file for this script info
         */
        private stopWatchingConfigFilesForClosedScriptInfo;
        /**
         * This function tries to search for a tsconfig.json for the given file.
         * This is different from the method the compiler uses because
         * the compiler can assume it will always start searching in the
         * current directory (the directory in which tsc was invoked).
         * The server must start searching from the directory containing
         * the newly opened file.
         */
        private forEachConfigFileLocation;
        /**
         * This function tries to search for a tsconfig.json for the given file.
         * This is different from the method the compiler uses because
         * the compiler can assume it will always start searching in the
         * current directory (the directory in which tsc was invoked).
         * The server must start searching from the directory containing
         * the newly opened file.
         * If script info is passed in, it is asserted to be open script info
         * otherwise just file name
         */
        private getConfigFileNameForFile;
        private printProjects;
        private findConfiguredProjectByProjectName;
        private getConfiguredProjectByCanonicalConfigFilePath;
        private findExternalProjectByProjectName;
        /** Get a filename if the language service exceeds the maximum allowed program size; otherwise returns undefined. */
        private getFilenameForExceededTotalSizeLimitForNonTsFiles;
        private createExternalProject;
        private addFilesToNonInferredProject;
        private createConfiguredProject;
        private updateNonInferredProjectFiles;
        private updateRootAndOptionsOfNonInferredProject;
        private sendConfigFileDiagEvent;
        private getOrCreateInferredProjectForProjectRootPathIfEnabled;
        private getOrCreateSingleInferredProjectIfEnabled;
        private getOrCreateSingleInferredWithoutProjectRoot;
        private createInferredProject;
        getScriptInfo(uncheckedFileName: string): ScriptInfo | undefined;
        private watchClosedScriptInfo;
        private watchClosedScriptInfoInNodeModules;
        private getModifiedTime;
        private refreshScriptInfo;
        private refreshScriptInfosInDirectory;
        private stopWatchingScriptInfo;
        private getOrCreateScriptInfoNotOpenedByClientForNormalizedPath;
        private getOrCreateScriptInfoOpenedByClientForNormalizedPath;
        getOrCreateScriptInfoForNormalizedPath(fileName: NormalizedPath, openedByClient: boolean, fileContent?: string, scriptKind?: ScriptKind, hasMixedContent?: boolean, hostToQueryFileExistsOn?: {
            fileExists(path: string): boolean;
        }): ScriptInfo | undefined;
        private getOrCreateScriptInfoWorker;
        /**
         * This gets the script info for the normalized path. If the path is not rooted disk path then the open script info with project root context is preferred
         */
        getScriptInfoForNormalizedPath(fileName: NormalizedPath): ScriptInfo | undefined;
        getScriptInfoForPath(fileName: Path): ScriptInfo | undefined;
        private addSourceInfoToSourceMap;
        private addMissingSourceMapFile;
        setHostConfiguration(args: protocol.ConfigureRequestArguments): void;
        closeLog(): void;
        /**
         * This function rebuilds the project for every file opened by the client
         * This does not reload contents of open files from disk. But we could do that if needed
         */
        reloadProjects(): void;
        private delayReloadConfiguredProjectForFiles;
        /**
         * This function goes through all the openFiles and tries to file the config file for them.
         * If the config file is found and it refers to existing project, it reloads it either immediately
         * or schedules it for reload depending on delayReload option
         * If the there is no existing project it just opens the configured project for the config file
         * reloadForInfo provides a way to filter out files to reload configured project for
         */
        private reloadConfiguredProjectForFiles;
        /**
         * Remove the root of inferred project if script info is part of another project
         */
        private removeRootOfInferredProjectIfNowPartOfOtherProject;
        /**
         * This function is to update the project structure for every inferred project.
         * It is called on the premise that all the configured projects are
         * up to date.
         * This will go through open files and assign them to inferred project if open file is not part of any other project
         * After that all the inferred project graphs are updated
         */
        private ensureProjectForOpenFiles;
        /**
         * Open file whose contents is managed by the client
         * @param filename is absolute pathname
         * @param fileContent is a known version of the file content that is more up to date than the one on disk
         */
        openClientFile(fileName: string, fileContent?: string, scriptKind?: ScriptKind, projectRootPath?: string): OpenConfiguredProjectResult;
        private findExternalProjectContainingOpenScriptInfo;
        private getOrCreateOpenScriptInfo;
        private assignProjectToOpenedScriptInfo;
        private cleanupAfterOpeningFile;
        openClientFileWithNormalizedPath(fileName: NormalizedPath, fileContent?: string, scriptKind?: ScriptKind, hasMixedContent?: boolean, projectRootPath?: NormalizedPath): OpenConfiguredProjectResult;
        private removeOrphanConfiguredProjects;
        private removeOrphanScriptInfos;
        private telemetryOnOpenFile;
        /**
         * Close file whose contents is managed by the client
         * @param filename is absolute pathname
         */
        closeClientFile(uncheckedFileName: string): void;
        private collectChanges;
        private closeConfiguredProjectReferencedFromExternalProject;
        closeExternalProject(uncheckedFileName: string): void;
        openExternalProjects(projects: protocol.ExternalProject[]): void;
        /** Makes a filename safe to insert in a RegExp */
        private static readonly filenameEscapeRegexp;
        private static escapeFilenameForRegex;
        resetSafeList(): void;
        applySafeList(proj: protocol.ExternalProject): NormalizedPath[];
        openExternalProject(proj: protocol.ExternalProject): void;
        hasDeferredExtension(): boolean;
        configurePlugin(args: protocol.ConfigurePluginRequestArguments): void;
    }
}
declare namespace ts.server {
    interface ServerCancellationToken extends HostCancellationToken {
        setRequest(requestId: number): void;
        resetRequest(requestId: number): void;
    }
    const nullCancellationToken: ServerCancellationToken;
    interface PendingErrorCheck {
        fileName: NormalizedPath;
        project: Project;
    }
    type CommandNames = protocol.CommandTypes;
    const CommandNames: any;
    function formatMessage<T extends protocol.Message>(msg: T, logger: Logger, byteLength: (s: string, encoding: string) => number, newLine: string): string;
    type Event = <T extends object>(body: T, eventName: string) => void;
    interface EventSender {
        event: Event;
    }
    interface SessionOptions {
        host: ServerHost;
        cancellationToken: ServerCancellationToken;
        useSingleInferredProject: boolean;
        useInferredProjectPerProjectRoot: boolean;
        typingsInstaller: ITypingsInstaller;
        byteLength: (buf: string, encoding?: string) => number;
        hrtime: (start?: number[]) => number[];
        logger: Logger;
        /**
         * If falsy, all events are suppressed.
         */
        canUseEvents: boolean;
        eventHandler?: ProjectServiceEventHandler;
        /** Has no effect if eventHandler is also specified. */
        suppressDiagnosticEvents?: boolean;
        syntaxOnly?: boolean;
        throttleWaitMilliseconds?: number;
        noGetErrOnBackgroundUpdate?: boolean;
        globalPlugins?: ReadonlyArray<string>;
        pluginProbeLocations?: ReadonlyArray<string>;
        allowLocalPluginLoads?: boolean;
        typesMapLocation?: string;
    }
    class Session implements EventSender {
        private readonly gcTimer;
        protected projectService: ProjectService;
        private changeSeq;
        private currentRequestId;
        private errorCheck;
        protected host: ServerHost;
        private readonly cancellationToken;
        protected readonly typingsInstaller: ITypingsInstaller;
        protected byteLength: (buf: string, encoding?: string) => number;
        private hrtime;
        protected logger: Logger;
        protected canUseEvents: boolean;
        private suppressDiagnosticEvents?;
        private eventHandler;
        private readonly noGetErrOnBackgroundUpdate?;
        constructor(opts: SessionOptions);
        private sendRequestCompletedEvent;
        private defaultEventHandler;
        private projectsUpdatedInBackgroundEvent;
        logError(err: Error, cmd: string): void;
        private logErrorWorker;
        send(msg: protocol.Message): void;
        event<T extends object>(body: T, eventName: string): void;
        /** @deprecated */
        output(info: any, cmdName: string, reqSeq?: number, errorMsg?: string): void;
        private doOutput;
        private semanticCheck;
        private syntacticCheck;
        private suggestionCheck;
        private sendDiagnosticsEvent;
        /** It is the caller's responsibility to verify that `!this.suppressDiagnosticEvents`. */
        private updateErrorCheck;
        private cleanProjects;
        private cleanup;
        private getEncodedSemanticClassifications;
        private getProject;
        private getConfigFileAndProject;
        private getConfigFileDiagnostics;
        private convertToDiagnosticsWithLinePositionFromDiagnosticFile;
        private getCompilerOptionsDiagnostics;
        private convertToDiagnosticsWithLinePosition;
        private getDiagnosticsWorker;
        private getDefinition;
        private mapDefinitionInfoLocations;
        private getDefinitionAndBoundSpan;
        private getEmitOutput;
        private mapDefinitionInfo;
        private static mapToOriginalLocation;
        private toFileSpan;
        private getTypeDefinition;
        private mapImplementationLocations;
        private getImplementation;
        private getOccurrences;
        private getSyntacticDiagnosticsSync;
        private getSemanticDiagnosticsSync;
        private getSuggestionDiagnosticsSync;
        private getJsxClosingTag;
        private getDocumentHighlights;
        private setCompilerOptionsForInferredProjects;
        private getProjectInfo;
        private getProjectInfoWorker;
        private getRenameInfo;
        private getProjects;
        private getDefaultProject;
        private getRenameLocations;
        private mapRenameInfo;
        private toSpanGroups;
        private getReferences;
        /**
         * @param fileName is the name of the file to be opened
         * @param fileContent is a version of the file content that is known to be more up to date than the one on disk
         */
        private openClientFile;
        private getPosition;
        private getPositionInFile;
        private getFileAndProject;
        private getFileAndLanguageServiceForSyntacticOperation;
        private getFileAndProjectWorker;
        private getOutliningSpans;
        private getTodoComments;
        private getDocCommentTemplate;
        private getSpanOfEnclosingComment;
        private getIndentation;
        private getBreakpointStatement;
        private getNameOrDottedNameSpan;
        private isValidBraceCompletion;
        private getQuickInfoWorker;
        private getFormattingEditsForRange;
        private getFormattingEditsForRangeFull;
        private getFormattingEditsForDocumentFull;
        private getFormattingEditsAfterKeystrokeFull;
        private getFormattingEditsAfterKeystroke;
        private getCompletions;
        private getCompletionEntryDetails;
        private getCompileOnSaveAffectedFileList;
        private emitFile;
        private getSignatureHelpItems;
        private createCheckList;
        private getDiagnostics;
        private change;
        private reload;
        private saveToTmp;
        private closeClientFile;
        private mapLocationNavigationBarItems;
        private getNavigationBarItems;
        private toLocationNavigationTree;
        private toLocationTextSpan;
        private getNavigationTree;
        private getNavigateToItems;
        private getFullNavigateToItems;
        private getSupportedCodeFixes;
        private isLocation;
        private extractPositionOrRange;
        private getApplicableRefactors;
        private getEditsForRefactor;
        private organizeImports;
        private getEditsForFileRename;
        private getCodeFixes;
        private getCombinedCodeFix;
        private applyCodeActionCommand;
        private getStartAndEndPosition;
        private mapCodeAction;
        private mapCodeFixAction;
        private mapTextChangesToCodeEdits;
        private mapTextChangeToCodeEdit;
        private convertTextChangeToCodeEdit;
        private getBraceMatching;
        private getDiagnosticsForProject;
        private configurePlugin;
        private getSmartSelectionRange;
        private mapSelectionRange;
        getCanonicalFileName(fileName: string): string;
        exit(): void;
        private notRequired;
        private requiredResponse;
        private handlers;
        addProtocolHandler(command: string, handler: (request: protocol.Request) => HandlerResponse): void;
        private setCurrentRequest;
        private resetCurrentRequest;
        executeWithRequestId<T>(requestId: number, f: () => T): T;
        executeCommand(request: protocol.Request): HandlerResponse;
        onMessage(message: string): void;
        private getFormatOptions;
        private getPreferences;
        private getHostFormatOptions;
        private getHostPreferences;
    }
    interface HandlerResponse {
        response?: {};
        responseRequired?: boolean;
    }
}

export = ts;
export as namespace ts;