release 1.1

.idea/codeStyles/codeStyleConfig.xml

+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </state>
+</component>

src/Contracts/PaymentGatewayDriver.php

     public function verifyGatewayReturn(Request $request): bool;
 
     public function verifyGatewayCallback(Request $request, Response &$response = null): bool;
+
+    public function getBillIdFromRequest(Request $request);
 }

src/Facade/Payment.php

  * @method static string createPaymentURL(PayableEntity $payable, array $options = [])
  * @method static bool verifyGatewayReturn(Request $request)
  * @method static bool verifyGatewayCallback(Request $request, Response &$response = null)
+ * @method static string|null getBillIdFromRequest(Request $request)
  */
 class Payment extends Facade
 {