src/Http/Routing/AlexaRouter.php
protected function addAlexaRoute($methods, $uri, $intent, $action)
    {
        return $this->routes->add($this->createAlexaRoute($methods, $uri, $intent, $action));
    }
protected function addAlexaRoute($methods, $uri, $intent, $action)
    {
        return $this->routes->add($this->createAlexaRoute($methods, $uri, $intent, $action));
    }
Add a route to the underlying route collection.

@param array|string               $methods
@param string                     $uri
@param string                     $intent
@param \Closure|array|string|null $action

@return \Illuminate\Routing\Route