docs: public ChatRoomMemberList getChatRoomMembers(long roomId, int start, int count)
              throws APIConnectionException, APIRequestException {
          Preconditions.checkArgument(roomId > 0, "room id is invalid");
          Preconditions.checkArgument(start >= 0 && count > 0, "Illegal argument");
          ResponseWrapper responseWrapper = _httpClient.sendGet(_baseUrl + mChatRoomPath + "/" + roomId + "/members"
                  + "?start=" + start + "&count=" + count);
          return ChatRoomMemberList.fromResponse(responseWrapper, ChatRoomMemberList.class);
      }