/**
 * Merge two maps
 * @param map1 - The first map to be merged
 * @param map2 - The second map to be merged
 * @return A map with the entries of both maps
 */
export declare const mergeMaps: <T1, T2, T3 = T1, T4 = T2>(map1: Map<T1, T2>, map2: Map<T3, T4>) => Map<T1 | T3, T2 | T4>;