type AwaitedLike<T> = T extends Promise<infer R> ? R : T;
type AnyFn = (...args: any[]) => any;
type Chain<T> = Promise<AwaitedLike<T>> & (T extends AnyFn ? (...a: Parameters<T>) => Chain<AwaitedLike<ReturnType<T>>> : {}) & {
    [K in keyof T]: T[K] extends (...a: infer A) => infer R ? (...a: A) => Chain<AwaitedLike<R>> : Chain<AwaitedLike<T[K]>>;
};
export declare const WF_NODE: unique symbol;
export declare function workflow<T>(source: T | Promise<T>): Chain<T>;
export {};