Route Group in Laravel

An example has not been documented about laravel route grouping. You can chain attributes in an array like this.

Route::group([
  'middleware' => ['admin'],
  'as' => 'admin.',
  'namespace' => 'Admin',
  'prefix' => 'admin'
], function () {
  Route::get('/', 'DashboardController@index')->name('dashboard');
});