func (s *Service) ExtendsServicePrefix() string {
	if dotIndex := strings.Index(s.Extends, "."); dotIndex > 0 {
		return s.ExtendsPrefix
	}
	return ""
}
func (s *Service) ExtendsServicePrefix() string {
	if dotIndex := strings.Index(s.Extends, "."); dotIndex > 0 {
		return s.ExtendsPrefix
	}
	return ""
}
func ( s * Service ) ExtendsServicePrefix ( ) string { if dotIndex := strings . Index ( s . Extends , " " ) ; dotIndex > 0 { return s . ExtendsPrefix } return " " }
// ExtendsServicePrefix returns a package selector (if any) for the extended service.
ExtendsServicePrefix returns a package selector ( if any ) for the extended service .