original_string: public function get_unsubscribeforumlink() {
          if (!\mod_forum\subscriptions::is_subscribable($this->forum)) {
              return null;
          }
          $link = new \moodle_url(
              '/mod/forum/subscribe.php', array(
                  'id' => $this->forum->id,
              )
          );
  
          return $link->out(false);
      }
code: public function get_unsubscribeforumlink() {
          if (!\mod_forum\subscriptions::is_subscribable($this->forum)) {
              return null;
          }
          $link = new \moodle_url(
              '/mod/forum/subscribe.php', array(
                  'id' => $this->forum->id,
              )
          );
  
          return $link->out(false);
      }
code_tokens: public function get_unsubscribeforumlink ( ) { if ( ! \ mod_forum \ subscriptions :: is_subscribable ( $ this -> forum ) ) { return null ; } $ link = new \ moodle_url ( '/mod/forum/subscribe.php' , array ( 'id' => $ this -> forum -> id , ) ) ; return $ link -> out ( false ) ; }
docstring: Get the link to unsubscribe from the forum.
  
  @return string
docstring_tokens: Get the link to unsubscribe from the forum .