code: public function &offsetGet($offset)
      {
          // Returning values by reference is deprecated, but we have no way of knowing here.
          //return $this->get($offset);
  
          $result = null;
          if (isset($this->items[$offset])) {
              $result = &$this->items[$offset];
          }
  
          return $result;
      }
docs: Don't call directly. Used for ArrayAccess.
  
  @internal
  
  @inheritdoc