/**
 * Helper function to update the store data more efficiently.
 * It compares the original map with the diff map and updates the original map in place.
 * If the diff map is empty, it returns the original map.
 * If the diff map is not empty, it creates a new map with the original map and the diff map.
 * @param original - The original map to update.
 * @param diff - The diff map to apply to the original map.
 * @param newDataContainKey - A function that checks if a key exists in the new map.
 * @returns - The updated map.
 * @description
 */
export declare function diffUpdate<K, V, M extends Map<K, V>>(original: M, diff: Map<K, V>, newDataContainKey: (key: K) => boolean): M;