code: public ResponseWrapper setGroupShield(GroupShieldPayload payload, String username)
              throws APIConnectionException, APIRequestException {
          return _userClient.setGroupShield(payload, username);
      }
docs: Set user's group message blocking
  @param payload GroupShieldPayload
  @param username Necessary
  @return No content
  @throws APIConnectionException connect exception
  @throws APIRequestException request exception