code: public function mount($prefix = null)
  	{
  		if ($prefix) {
  			$this->router->group(['prefix' => $prefix], function() {
  				$this->registerRoutes();
  			});
  		} else {
  			$this->registerRoutes();
  		}
  	}
docs: Mount the configuration.
  
  @param  string|null $prefix
  
  @return void