/**
  * Return an instance of this class.
  * @return Vindi_WooCommerce_Subscriptions
  */
 public static function get_instance()
 {
     // If the single instance hasn't been set, set it now.
     if (null === self::$instance) {
         self::$instance = new self();
     }
     return self::$instance;
 }
 /**
  * Add a script in the wordpress script queue
  * @param string    $path
  * @param array     $dependencies
  **/
 public function add_script($path, $dependencies = array())
 {
     wp_enqueue_script('vindi-checkout', Vindi_WooCommerce_Subscriptions::generate_assets_url($path), $dependencies);
 }