original_string: public function message($message, single_button $button = null) {
          $output  = $this->output->box_start('generalbox boxaligncenter');
          $output .= $message;
          if ($button !== null) {
              $output .= $this->output->box($this->output->render($button), 'lessonbutton standardbutton');
          }
          $output .= $this->output->box_end();
          return $output;
      }
code: public function message($message, single_button $button = null) {
          $output  = $this->output->box_start('generalbox boxaligncenter');
          $output .= $message;
          if ($button !== null) {
              $output .= $this->output->box($this->output->render($button), 'lessonbutton standardbutton');
          }
          $output .= $this->output->box_end();
          return $output;
      }
code_tokens: public function message ( $ message , single_button $ button = null ) { $ output = $ this -> output -> box_start ( 'generalbox boxaligncenter' ) ; $ output .= $ message ; if ( $ button !== null ) { $ output .= $ this -> output -> box ( $ this -> output -> render ( $ button ) , 'lessonbutton standardbutton' ) ; } $ output .= $ this -> output -> box_end ( ) ; return $ output ; }
docstring: Returns HTML to display a message
  @param string $message
  @param single_button $button
  @return string
docstring_tokens: Returns HTML to display a message