/**
 * Split array in two parts given condition
 * @param  {unknown[]} array
 * @param  {(unknown, number): boolean} condition
 * @return two dimensional array of length two
 */
export declare const partitionArray: <A = unknown>(array: A[], condition: (element: A, idx: number) => boolean) => A[][];
/**
 * Split array in several chunks given the chunk size
 * @param  {T[]} array
 * @param  {number} chunkSize chunk size, should be greater than zero
 * @return two dimensional array containing arrays of length at least chunkSize
 */
export declare const spliceIntoChunks: <T>(arr: T[], chunkSize: number) => never[];