/**
 * The `wfp` function stands for `wait for promise`. It takes a function that returns a promise and waits for it to resolve to a truthy value or an error.
 *
 * [Aracna Reference](https://aracna.dariosechi.it/core/functions/wfp)
 */
export declare function wfp(fn: () => Promise<any>, ms?: number, timeout?: number): Promise<void | Error>;