public function listFolder($path = null, array $params = [])
    {
        //Specify the root folder as an
        //empty string rather than as "/"
        if ($path === '/') {
            $path = "";
        }

        //Set the path
        $params['path'] = $path;

        //Get File Metadata
        $response = $this->postToAPI('/files/list_folder', $params);

        //Make and Return the Model
        return $this->makeModelFromResponse($response);
    }