declare module "@extra-array/concat-update" {
/**
 * Appends values from arrays.
 * @param x an array (updated)
 * @param ys arrays to append
 * @returns x
 */
declare function concat$<T>(x: T[], ...ys: Iterable<T>[]): T[];
export = concat$;
//# sourceMappingURL=concat$.d.ts.map}