code: public ResponseWrapper removeChatRoomMembers(long roomId, Members members)
              throws APIConnectionException, APIRequestException {
          Preconditions.checkArgument(roomId > 0, "room id is invalid");
          Preconditions.checkArgument(members != null, "members should not be empty");
          return _httpClient.sendDelete(_baseUrl + mChatRoomPath + "/" + roomId + "/members", members.toString());
      }
docs: remove members from chat room
  
  @param roomId  chat room id
  @param members {@link Members}
  @return No content
  @throws APIConnectionException connect exception
  @throws APIRequestException    request exception