/**
 * Returns a tuple containing the first element of the given iterable and a new iterable for the remaining elements.
 *
 * @typeParam T - The type of elements in the source iterable.
 * @param src - The source iterable to extract the head and tail from.
 * @returns A readonly tuple where the first element is the head (first item) and the second element is an iterable of the tail (remaining items).
 * @throws {Error} If the source iterable is empty.
 */
export declare const headTail: <T>(src: Iterable<T>) => readonly [T, Iterable<T>];