shipping = $shipping; return $this; } /** * Amount being charged for shipping. * @return string */ public function getShipping() { return $this->shipping; } /** * Sub-total (amount) of items being paid for. * @param string $subtotal */ public function setSubtotal($subtotal) { $this->subtotal = $subtotal; return $this; } /** * Sub-total (amount) of items being paid for. * @return string */ public function getSubtotal() { return $this->subtotal; } /** * Amount being charged as tax. * @param string $tax */ public function setTax($tax) { $this->tax = $tax; return $this; } /** * Amount being charged as tax. * @return string */ public function getTax() { return $this->tax; } /** * Fee charged by PayPal. In case of a refund, this is the fee amount refunded to the original receipient of the payment. * @param string $fee */ public function setFee($fee) { $this->fee = $fee; return $this; } /** * Fee charged by PayPal. In case of a refund, this is the fee amount refunded to the original receipient of the payment. * @return string */ public function getFee() { return $this->fee; } }