Symfony\Component\Form\FormError::getMessagePluralization PHP Method

    public function getMessagePluralization()
    {
        return $this->messagePluralization;
    }

 private function getErrorMessage(FormError $error)
 {
     if (null !== $error->getMessagePluralization()) {
         return $this->translator->transChoice($error->getMessageTemplate(), $error->getMessagePluralization(), $error->getMessageParameters(), 'validators');
     }
     return $this->translator->trans($error->getMessageTemplate(), $error->getMessageParameters(), 'validators');
 }