/**
 * Turns a parameterless function into an Iterator that will produce results using
 * the input function's return value. In case the function returns a promise, the result will be
 * an AsyncIterator.
 * Useful for 'impure' stuff like Math.random, or Date.now etc.
 *
 * @example
 * ```typescript
 * pipe(
 *  itr8FromImpureFunction(Math.random),
 *  take(3),
 *  itr8ToArray
 * ); // => [0.2511072995514807, 0.04918679946517224, 0.48479881173432826]
 * ```
 * @param a anything like object, string, number, ...
 * @returns an iterator
 *
 * @category interface/standard
 */
declare function itr8FromImpureFunction<T>(f: () => T | Promise<T>): IterableIterator<T> | AsyncIterableIterator<T>;
export { itr8FromImpureFunction };