Webiny\Component\Router\Route\RouteCollection::add PHP Method

    public function add($name, Route $route)
    {
        $this->routes[$name] = $route;
    }

 /**
  * Builds and returns RouteCollection instance.
  *
  * @return RouteCollection
  */
 public function getRouteCollection()
 {
     foreach ($this->config as $name => $routeConfig) {
         $this->routeCollection->add($name, $this->processRoute($routeConfig));
     }
     unset($this->config);
     return $this->routeCollection;
 }