original_string: public function markAsRead()
      {
          if (is_null($this->read_at)) {
              $this->forceFill(array(
                  'read_at' => $this->freshTimestamp()
              ));
  
              $this->save();
          }
      }
code: public function markAsRead()
      {
          if (is_null($this->read_at)) {
              $this->forceFill(array(
                  'read_at' => $this->freshTimestamp()
              ));
  
              $this->save();
          }
      }
code_tokens: public function markAsRead ( ) { if ( is_null ( $ this -> read_at ) ) { $ this -> forceFill ( array ( 'read_at' => $ this -> freshTimestamp ( ) ) ) ; $ this -> save ( ) ; } }
docstring: Mark the notification as read.
  
  @return void
docstring_tokens: Mark the notification as read .