protected function getClassDocBlockLines() {
    $docblock_lines = parent::getClassDocBlockLines();

    // Do not include the annotation if this plugin is a class override.
    if (!empty($this->component_data['replace_parent_plugin'])) {
      return $docblock_lines;
    }

    $docblock_lines[] = '';

    $docblock_lines = array_merge($docblock_lines, $this->classAnnotation());

    return $docblock_lines;
  }