import { Decorator, Node, ObjectFlags, Type, TypeChecker, TypeFlags, TypeFormatFlags, SourceFile, UnionTypeNode, TypeNode } from 'typescript';
export declare function isArray(type: Type): boolean;
export declare function getTypeArguments(type: Type): any;
export declare function isBoolean(type: Type): boolean;
export declare function isString(type: Type): boolean;
export declare function isNumber(type: Type): boolean;
export declare function isInterface(type: Type): boolean;
export declare function isEnum(type: Type): boolean;
export declare function isEnumLiteral(type: Type): boolean;
export declare function isNull(type: Type): boolean;
export declare function isUndefined(type: Type): boolean;
export declare function hasFlag(type: Type, flag: TypeFlags): boolean;
export declare function hasObjectFlag(type: Type, flag: ObjectFlags): boolean;
export declare function getText(type: Type, typeChecker: TypeChecker, enclosingNode?: Node, typeFormatFlags?: TypeFormatFlags): string;
export declare function getDefaultTypeFormatFlags(enclosingNode: Node): number;
export declare function getDecoratorArguments(decorator: Decorator): any[] | import("typescript").NodeArray<import("typescript").Expression>;
export declare function getDecoratorName(decorator: Decorator): string;
export declare function getDescriptionOfNode(node: Node, sourceFile: SourceFile): string;
export declare function findNullableTypeFromUnion(typeNode: UnionTypeNode, typeChecker: TypeChecker): TypeNode;