Fix the issues reported by phpcs

 /**
- * Class PaymentOffsiteForm.
+ * Implements Class PaymentOffsiteForm.
  *

The short description for a class does not start with Implements nor doe it repeat the class name. (Also, saying that a class implements itself does not make sense.)

-          "redirect_url" => Url::FromRoute('commerce_payment.checkout.return', ['commerce_order' => $order_id, 'step' => 'payment'], ['absolute' => TRUE])->toString(),
+          "redirect_url" => Url::FromRoute('commerce_payment.checkout.return',
+                            ['commerce_order' => $order_id, 'step' => 'payment'],
+                            ['absolute' => TRUE])->toString(),

Drupal coding standards say that lines are allowed to be longer than 80 character, if they are more readable. The changed code is not more readable and it is wrongly indented.

Hi, I have updated the patch with the changes

 /**
- * Class PaymentOffsiteForm.
+ * Provides payment off site form.

Actually, it is the off-site payment form, which means the full description is Provides the off-site payment form.

Thanks, I have updated the description as per your suggestion.

Verified the patch.
The changes raised by @apaderno have been incorporated and there are no more Phpcs errors.

Moving to RTBC.

Automatically closed - issue fixed for 2 weeks with no activity.