/**
 * Pushes all `items` into `array` using `push`, therefore mutating the array.
 * We do this for memory and perf reasons, and because `array.push(...items)` would
 * run into a "max call stack size exceeded" error with too many items (~65k).
 * @param array
 * @param items
 */
export declare function push_array<T>(array: T[], items: T[]): void;