add code for implement method in class enumerable : all?, any?, map, coolect, flat_map, count, cycle, detect, find, drop, drop_while, each_cons, each_slice, each_with_index, each_with_object, find_all, first, _flat_map, grep, map, max, max_bay, minmax_by, none, reject, sort, sort_by, take, take_while, to_h