code: public ChatRoomMemberList getChatRoomMembers(long roomId, int start, int count)
              throws APIConnectionException, APIRequestException {
          return _chatRoomClient.getChatRoomMembers(roomId, start, count);
      }
docs: Get all member info of chat room
  
  @param roomId chat room id
  @param start  start index
  @param count member count
  @return {@link ChatRoomMemberList}
  @throws APIConnectionException connect exception
  @throws APIRequestException    request exception