original_string: protected function add_part_heading($heading, $content) {
          if ($content) {
              $content = html_writer::tag('h4', $heading, array('class' => 'accesshide')) . $content;
          }
          return $content;
      }
code: protected function add_part_heading($heading, $content) {
          if ($content) {
              $content = html_writer::tag('h4', $heading, array('class' => 'accesshide')) . $content;
          }
          return $content;
      }
code_tokens: protected function add_part_heading ( $ heading , $ content ) { if ( $ content ) { $ content = html_writer :: tag ( 'h4' , $ heading , array ( 'class' => 'accesshide' ) ) . $ content ; } return $ content ; }
docstring: Add an invisible heading like 'question text', 'feebdack' at the top of
  a section's contents, but only if the section has some content.
  @param string $heading the heading to add.
  @param string $content the content of the section.
  @return string HTML fragment with the heading added.
docstring_tokens: Add an invisible heading like question text feebdack at the top of a section s contents but only if the section has some content .