src/Validators/DateValidator.php
protected function getFormatter()
    {
        if ($this->formatter === null) {
            $this->formatter = Reaction::$app->formatter;
        }
        return $this->formatter;
    }
protected function getFormatter()
    {
        if ($this->formatter === null) {
            $this->formatter = Reaction::$app->formatter;
        }
        return $this->formatter;
    }
Get formatter
@return Reaction\I18n\Formatter|Reaction\I18n\Request\Formatter