src/Router/RouteBranch.php
public function addRoute(Route $route): void
    {
        foreach( $route->getMethods() as $method ){

            if( array_key_exists($method, $this->routes) ){
                throw new \Exception("{$method}#{$this->path} route has already been defined.");
            }

            $this->routes[$method] = $route;
        }
    }
public function addRoute(Route $route): void
    {
        foreach( $route->getMethods() as $method ){

            if( array_key_exists($method, $this->routes) ){
                throw new \Exception("{$method}#{$this->path} route has already been defined.");
            }

            $this->routes[$method] = $route;
        }
    }
Add route to this leaf.

@param Route $route
@return void