original_string: public function quiz_intro($quiz, $cm) {
          if (html_is_blank($quiz->intro)) {
              return '';
          }
  
          return $this->box(format_module_intro('quiz', $quiz, $cm->id), 'generalbox', 'intro');
      }
code: public function quiz_intro($quiz, $cm) {
          if (html_is_blank($quiz->intro)) {
              return '';
          }
  
          return $this->box(format_module_intro('quiz', $quiz, $cm->id), 'generalbox', 'intro');
      }
code_tokens: public function quiz_intro ( $ quiz , $ cm ) { if ( html_is_blank ( $ quiz -> intro ) ) { return '' ; } return $ this -> box ( format_module_intro ( 'quiz' , $ quiz , $ cm -> id ) , 'generalbox' , 'intro' ) ; }
docstring: Output the quiz intro.
  @param object $quiz the quiz settings.
  @param object $cm the course_module object.
  @return string HTML to output.
docstring_tokens: Output the quiz intro .