public function __construct($message = '', $code = 0, Exception $previous = null)
 {
     if (empty($message)) {
         $message = 'Email is required.';
     }
     parent::__construct($message, $code, $previous);
 }
 public function __construct($message = '', $code = 0, Exception $previous = null)
 {
     if (empty($message)) {
         $message = 'Invalid Arguments.';
     }
     parent::__construct($message, $code, $previous);
 }