docs: public CreateChatRoomResult createChatRoom(ChatRoomPayload payload) throws APIConnectionException, APIRequestException {
          Preconditions.checkArgument(null != payload, "ChatRoomPayload should not be null");
          ResponseWrapper responseWrapper = _httpClient.sendPost(_baseUrl + mChatRoomPath, payload.toString());
          return CreateChatRoomResult.fromResponse(responseWrapper, CreateChatRoomResult.class);
      }