code: public function visitDocumentationTag(DocumentationTag $documentationTag)
      {
          $this->typeCheck->visitDocumentationTag(func_get_args());
          $content = $documentationTag->content() ?: '';
  
          $position = 0;
          $type = $this->parseType(
              $content,
              $position
          );
          $byReference = $this->parseByReference(
              $content,
              $position
          );
          $name = $this->parseName(
              $content,
              $position
          );
          $description = $this->parseDescription(
              $content,
              $position
          );
          $optional = $this->parseOptional(
              $content
          );
  
          return new Parameter(
              $name,
              $type,
              $description,
              $optional,
              $byReference
          );
      }
docs: @param DocumentationTag $documentationTag
  
  @return Parameter