Issue #3270758 by abramm: Rename $plugin variable to make it more obvious what plugin is

src/PluginForm/Omise/PaymentMethodAddForm.php

@@ -22,12 +22,14 @@ class PaymentMethodAddForm extends BasePaymentMethodAddForm {
     // Alter the form with Omise specific needs.
     $element['#attributes']['class'][] = 'omise-form';
 
-    // Set our key to settings array.
-    if (!($this->plugin instanceof OmiseInterface)) {
+    $paymentGatewayPlugin = $this->plugin;
+    if (!($paymentGatewayPlugin instanceof OmiseInterface)) {
       throw new \InvalidArgumentException('Omise payment method required.');
     }
+
+    // Set our key to settings array.
     $element['#attached']['drupalSettings']['commerceOmise'] = [
-      'publicKey' => $this->plugin->getPublicKey(),
+      'publicKey' => $paymentGatewayPlugin->getPublicKey(),
     ];
 
     // To display validation errors.