original_string: public function enqueue(... $items) : Queue
      {
          $values = $this->_pushAll($items);
          $this->setValues($values);
          return $this;
      }
code: public function enqueue(... $items) : Queue
      {
          $values = $this->_pushAll($items);
          $this->setValues($values);
          return $this;
      }
code_tokens: public function enqueue ( ... $ items ) : Queue { $ values = $ this -> _pushAll ( $ items ) ; $ this -> setValues ( $ values ) ; return $ this ; }
docstring: Add item to the queue
  
  @param mixed $items
  
  @return Queue
docstring_tokens: Add item to the queue