Interface CancellablePromiseLike<T>

interface CancellablePromiseLike<T> {
    cancel(cause?: any): void | PromiseLike<void>;
    then<TResult1 = T, TResult2 = never>(
        onfulfilled?:
            | (
                (
                    value: T,
                ) => TResult1 | PromiseLike<TResult1> | CancellablePromiseLike<TResult1>
            )
            | null,
        onrejected?:
            | (
                (
                    reason: any,
                ) => TResult2 | PromiseLike<TResult2> | CancellablePromiseLike<TResult2>
            )
            | null,
    ): CancellablePromiseLike<TResult1 | TResult2>;
}