declare namespace InternalUtilBinding { class WeakReference { constructor(value: T); get(): undefined | T; incRef(): void; decRef(): void; } } export interface UtilBinding { // PER_ISOLATE_PRIVATE_SYMBOL_PROPERTIES, defined in src/env_properties.h arrow_message_private_symbol: 1; contextify_context_private_symbol: 2; decorated_private_symbol: 3; napi_type_tag: 4; napi_wrapper: 5; untransferable_object_private_symbol: 6; exiting_aliased_Uint32Array: 7; kPending: 0; kFulfilled: 1; kRejected: 2; getHiddenValue(object: object, index: number): any; setHiddenValue(object: object, index: number, value: any): boolean; getPromiseDetails(promise: any): undefined | [state: 0] | [state: 1 | 2, result: any]; getProxyDetails(proxy: any, fullProxy?: boolean): undefined | any | [target: any, handler: any]; previewEntries(object: object, slowPath?: boolean): undefined | any[] | [entries: any[], isKeyValue: boolean]; getOwnNonIndexProperties(object: object, filter: number): Array; getConstructorName(object: object): string; getExternalValue(value: any): bigint; sleep(msec: number): void; isConstructor(fn: Function): boolean; arrayBufferViewHasBuffer(view: ArrayBufferView): boolean; propertyFilter: { ALL_PROPERTIES: 0; ONLY_WRITABLE: 1; ONLY_ENUMERABLE: 2; ONLY_CONFIGURABLE: 4; SKIP_STRINGS: 8; SKIP_SYMBOLS: 16; }; shouldAbortOnUncaughtToggle: [shouldAbort: 0 | 1]; WeakReference: typeof InternalUtilBinding.WeakReference; guessHandleType(fd: number): 'TCP' | 'TTY' | 'UDP' | 'FILE' | 'PIPE' | 'UNKNOWN'; parseEnv(content: string): Record; styleText(format: Array | string, text: string): string; isInsideNodeModules(frameLimit: number, defaultValue: unknown): boolean; }