/**
  * Gets the captcha module.
  * 
  * @return Module
  */
 public function getModule()
 {
     return Module::getInstance();
 }
 /**
  * @inheritdoc
  * 
  * Configuration array to create the action is provided in the Module class.
  * 
  * @return array
  */
 public function actions()
 {
     return ['index' => Module::getInstance()->captchaAction];
 }