| 1234567891011121314151617 | /** * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. */export default class PCancelable<T> implements PromiseLike<T> {    private _pending;    private _canceled;    private _promise;    private _cancel?;    private _reject;    constructor(executor: (onCancel: (cancelHandler: () => void) => void, resolve: (value: T | PromiseLike<T>) => void, reject: (reason?: unknown) => void) => void);    then<TResult1 = T, TResult2 = never>(onFulfilled?: ((value: T) => TResult1 | PromiseLike<TResult1>) | undefined | null, onRejected?: ((reason: unknown) => TResult2 | PromiseLike<TResult2>) | undefined | null): Promise<TResult1 | TResult2>;    catch<TResult>(onRejected?: ((reason: unknown) => TResult | PromiseLike<TResult>) | undefined | null): Promise<T | TResult>;    cancel(): void;}
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