code: public function tag(...$tags): void
      {
          call_user_func_array(
              [$this->client, 'call'],
              array_merge(['recur.tag', $this->jid], array_values(func_get_args()))
          );
      }
docs: {@inheritdoc}
  
  @param  string ...$tags A list of tags to to add to this job.
  @return void