Interface PipeTransform<T>

interface PipeTransform<T> {
    pipe: {
        <U>(
            fn: (value: T) => Exclude<U, Promise<any>>,
        ): Experimental.PipelineBox<U>;
        <U>(fn: (value: T) => Promise<U>): Experimental.AsyncPipelineBox<U>;
        <U>(
            fn: (value: T) => U | Promise<U>,
        ): U extends Promise<any>
            ? Experimental.AsyncPipelineBox<Awaited<U>>
            : Experimental.PipelineBox<U>;
    };
    depipe(): T;
    (incoming: unknown): T;
}