/**
 * Get the length of an iterable or asynchronous iterable.
 *
 * @category Asynchronous Reducers
 * @example
 * ```typescript
 * length([1, 2, 3]); // 3
 * ```
 * @param iterable Iterable or asynchronous iterable to get the length from.
 * @returns Promise with the length of the iterable.
 */
export declare const length: <
	Iterable extends import("@lou.codes/types").IsomorphicIterable<unknown>,
>(
	iterable: Iterable,
) => Iterable extends AsyncIterable<unknown> ? Promise<number> : number;