knitpay(); } public function razorpay(): Razorpay { if (is_null($this->_razorpay)) { $this->_razorpay = new Razorpay(); } return $this->_razorpay; } public function paypal(): Paypal { if (is_null($this->_paypal)) { $this->_paypal = new Paypal(); } return $this->_paypal; } public function payu(): PayU { if (is_null($this->_payu)) { $this->_payu = new PayU(); } return $this->_payu; } public function stripe(): Stripe { if (is_null($this->_stripe)) { $this->_stripe = new Stripe(); } return $this->_stripe; } public function offline(): Offline { if (is_null($this->_offline)) { $this->_offline = new Offline(); } return $this->_offline; } public function knitpay(): KnitPay { if (is_null($this->_knitpay)) { $this->_knitpay = new KnitPay(); } return $this->_knitpay; } }