code: public function tag(...$tags): void
      {
          $response = call_user_func_array(
              [$this->client, 'call'],
              array_merge(['tag', 'add', $this->jid], array_values(func_get_args()))
          );
  
          $this->setTags(json_decode($response, true));
      }
docs: Add the specified tags to this job.
  
  @param  string ...$tags A list of tags to to add to this job.
  @return void