sendEmailNotifications example

$account->block();
    }

    $this->checkEditFieldAccess($account);

    // Make sure that the user entity is valid (email and name are valid).     $this->validate($account);

    // Create the account.     $account->save();

    $this->sendEmailNotifications($account);

    return new ModifiedResourceResponse($account, 200);
  }

  /** * Ensure the account can be registered in this request. * * @param \Drupal\user\UserInterface $account * The user account to register. */
  protected function ensureAccountCanRegister(UserInterface $account = NULL) {