code: public function add($httpMethod, $route, $handler, $middlewares = array())
      {
          $route = $this->parse(array($httpMethod, $route, $handler, $middlewares));
  
          $this->collector->addRoute($httpMethod, $route[1], $route[2]);
  
          $this->routes[] = $route;
  
          return $this;
      }
docs: Adds a new raw route.
  
  @param  string|string[] $httpMethod
  @param  string          $route
  @param  array|string    $handler
  @param  array           $middlewares
  @return self