public async void TestStaticGetRoomMembersAsync()
        {
            var roomId   = RoomList != null && RoomList.Any() ? RoomList.First() : Room;
            var response = await ChatworkClient.GetRoomMembersAsync(Token, roomId)
                           .ConfigureAwait(false);

            AssertGetRoomMembersResponse(response, AccountId);
        }
        public void TestStaticGetRoomMembersAsyncCallback()
        {
            var roomId = RoomList != null && RoomList.Any() ? RoomList.First() : Room;

            ChatworkClient.GetRoomMembersAsync(
                Token,
                response => AssertGetRoomMembersResponse(response, AccountId),
                roomId);
        }