/**
  * Displays a payment method duplication form.
  *
  * @param \Drupal\payment\Entity\PaymentMethodConfigurationInterface $payment_method_configuration
  *
  * @return array
  *   A render array.
  */
 public function execute(PaymentMethodConfigurationInterface $payment_method_configuration)
 {
     $clone = $payment_method_configuration->createDuplicate();
     $clone->setLabel($this->t('@label (duplicate)', ['@label' => $payment_method_configuration->label()]));
     return $this->entityFormBuilder->getForm($clone, 'default');
 }