/**
     * A validation helper method to check if the passed in
     * password will pass all of the validators currently defined.
     *
     * Handy for use in validation, but you will get a slightly
     * better security if this is done manually, since you can
     * personalize based on a specific user at that point.
     *
     * @param string      $str
     * @param string      $fields
     * @param array|null  $data
     * @param string|null $error 
     *
     * @return bool
     */
    public function strong_password(string $str, string $fields, array $data, string &$error = null)
    {
        $config = config('Auth');
        $checker = \Config\Services::passwords();

        $fields = array_merge($config->validFields, $config->personalFields);
        $fields[] = 'password';

        $user = new \Myth\Auth\Entities\User(array_merge($fields, $data));

        $result = $checker->check($str, $user);

        if ($result === false) {
            $error = $checker->error();
        }

        return $result;
    }