amount = $amount; return $this; } /** * Shipping cost in amount. Range of 0 to 999999.99. * * @return \PayPal\Api\Currency */ public function getAmount() { return $this->amount; } /** * Tax percentage on shipping amount. * * @param \PayPal\Api\Tax $tax * * @return $this */ public function setTax($tax) { $this->tax = $tax; return $this; } /** * Tax percentage on shipping amount. * * @return \PayPal\Api\Tax */ public function getTax() { return $this->tax; } }