declare module 'util/types' { function isAnyArrayBuffer(object: any): object is ArrayBufferLike; function isArgumentsObject(object: any): object is IArguments; function isArrayBuffer(object: any): object is ArrayBuffer; function isArrayBufferView(object: any): object is NodeJS.ArrayBufferView; function isAsyncFunction(object: any): boolean; function isBigInt64Array(value: any): value is BigInt64Array; function isBigUint64Array(value: any): value is BigUint64Array; function isBooleanObject(object: any): object is Boolean; function isBoxedPrimitive(object: any): object is String | Number | BigInt | Boolean | Symbol; function isDataView(object: any): object is DataView; function isDate(object: any): object is Date; function isExternal(object: any): boolean; function isFloat32Array(object: any): object is Float32Array; function isFloat64Array(object: any): object is Float64Array; function isGeneratorFunction(object: any): object is GeneratorFunction; function isGeneratorObject(object: any): object is Generator; function isInt8Array(object: any): object is Int8Array; function isInt16Array(object: any): object is Int16Array; function isInt32Array(object: any): object is Int32Array; function isMap( object: T | {}, ): object is T extends ReadonlyMap ? unknown extends T ? never : ReadonlyMap : Map; function isMapIterator(object: any): boolean; function isModuleNamespaceObject(value: any): boolean; function isNativeError(object: any): object is Error; function isNumberObject(object: any): object is Number; function isPromise(object: any): object is Promise; function isProxy(object: any): boolean; function isRegExp(object: any): object is RegExp; function isSet( object: T | {}, ): object is T extends ReadonlySet ? unknown extends T ? never : ReadonlySet : Set; function isSetIterator(object: any): boolean; function isSharedArrayBuffer(object: any): object is SharedArrayBuffer; function isStringObject(object: any): object is String; function isSymbolObject(object: any): object is Symbol; function isTypedArray(object: any): object is NodeJS.TypedArray; function isUint8Array(object: any): object is Uint8Array; function isUint8ClampedArray(object: any): object is Uint8ClampedArray; function isUint16Array(object: any): object is Uint16Array; function isUint32Array(object: any): object is Uint32Array; function isWeakMap(object: any): object is WeakMap; function isWeakSet(object: any): object is WeakSet; }