code: public function add($httpMethod, $route, $handler, $middlewares = array())
      {
          $route = $route[0] !== '/' ? '/' . $route : (string) $route;
  
          $route = array($httpMethod, $route, $handler, $middlewares);
  
          $this->routes[] = $this->parse($route);
  
          return $this;
      }
docs: Adds a new raw route.
  
  @param  string       $httpMethod
  @param  string       $route
  @param  array|string $handler
  @param  array|string $middlewares
  @return self