/**
     * Replace each field parameter dot placeholder with dot.
     *
     * @param  string  $value
     * @return string // should be array
     */
    protected function replaceDotPlaceholderInParameters(array $parameters)
    {
        return array_map(function ($field) {
            return str_replace('__dot__'.static::$placeholderHash, '.', $field);
        }, $parameters);
    }