original_string: public function navbar(Closure $builder = null)
      {
          if (is_null($builder)) {
              return $this->getNavbar();
          }
  
          call_user_func($builder, $this->getNavbar());
      }
code: public function navbar(Closure $builder = null)
      {
          if (is_null($builder)) {
              return $this->getNavbar();
          }
  
          call_user_func($builder, $this->getNavbar());
      }
code_tokens: public function navbar ( Closure $ builder = null ) { if ( is_null ( $ builder ) ) { return $ this -> getNavbar ( ) ; } call_user_func ( $ builder , $ this -> getNavbar ( ) ) ; }
docstring: Set navbar.
  
  @param Closure|null $builder
  
  @return Navbar
docstring_tokens: Set navbar .