con = new \Stripe\StripeClient($apiKey); } public function createCharge(int $customer, Charge $charge) {} public function refundCharge(int $customer, int $charge) {} public function listCharges(int $customer) {} public function addPaymentMethod(int $customer, mixed $paymentMethod) {} public function removePaymentMethod(int $customer, int $paymentMethod) {} public function modifyPaymentMethod(int $customer, mixed $paymentMethod) {} public function listPaymentMethods(int $customer) {} public function addSubscription(int $customer, mixed $subscription) {} public function removeSubscription(int $customer, int $subscription) {} public function modifySubscription(int $customer, mixed $subscription) {} public function listSubscriptions(int $customer) {} }