/**
  * Add the button on the login form.
  */
 public function loginForm()
 {
     $wpLoginScreen = $this->om->get($this->container->getSlug() . '.login');
     if (!$wpLoginScreen) {
         $wpLoginScreen = new WPLoginScreen();
     }
     if ($wpLoginScreen->getEnable()) {
         echo $this->loginButtonManager->renderButton($wpLoginScreen->getLoginButton()) . "<br><br>";
     }
     return;
 }