func ParseAuthConfig(s string) (*AuthConfig, error) {
	if s == "" {
		return nil, ErrAuthStringEmpty
	}

	var a AuthConfig

	if strings.Contains(s, ":") {
		split := strings.SplitN(s, ":", 2)
		a.Username = String(split[0])
		a.Password = String(split[1])
	} else {
		a.Username = String(s)
	}

	return &a, nil
}
func ParseAuthConfig(s string) (*AuthConfig, error) {
	if s == "" {
		return nil, ErrAuthStringEmpty
	}

	var a AuthConfig

	if strings.Contains(s, ":") {
		split := strings.SplitN(s, ":", 2)
		a.Username = String(split[0])
		a.Password = String(split[1])
	} else {
		a.Username = String(s)
	}

	return &a, nil
}
// ParseAuthConfig parses the auth into username:password.