/**
  * @inheritdoc
  */
 protected function createPayload()
 {
     $payload = new GroupsMarkPayload();
     $payload->setGroupId('G1234567');
     $payload->setSlackTimestamp('12345678.12345678');
     return $payload;
 }
 /**
  * @return GroupsMarkPayload
  */
 protected function createPayload()
 {
     $payload = new GroupsMarkPayload();
     $payload->setGroupId($this->input->getArgument('group-id'));
     $payload->setSlackTimestamp($this->input->getArgument('timestamp'));
     return $payload;
 }