code: public ResponseWrapper deleteChatRoom(long roomId) throws APIConnectionException, APIRequestException {
          Preconditions.checkArgument(roomId > 0, "room id is invalid");
          return _httpClient.sendDelete(_baseUrl + mChatRoomPath + "/" + roomId);
      }
docs: Delete chat room by id
  
  @param roomId room id
  @return No content
  @throws APIConnectionException connect exception
  @throws APIRequestException    request exception