import type { PhpAssoc } from '../_helpers/_phpTypes.ts';
type ArrayChunkInput<T> = T[] | PhpAssoc<T>;
type ArrayChunkOutput<T> = T[] | PhpAssoc<T>;
export declare function array_chunk<T>(input: ArrayChunkInput<T>, size: number, preserveKeys?: boolean): ArrayChunkOutput<T>[] | null;
export {};