src/Shipping/FreeShipping.php
public function amount()
    {
        $orderData = Session::get('order_data');
        $cartProducts = Session::get('cart');
        $this->process($orderData, $cartProducts);

        return $this->amount;
    }
public function amount()
    {
        $orderData = Session::get('order_data');
        $cartProducts = Session::get('cart');
        $this->process($orderData, $cartProducts);

        return $this->amount;
    }
public function amount ( ) { $ orderData = Session :: get ( 'order_data' ) ; $ cartProducts = Session :: get ( 'cart' ) ; $ this -> process ( $ orderData , $ cartProducts ) ; return $ this -> amount ; }
Calculate and Return the Amount.

return float $amount
Calculate and Return the Amount .