You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: group_version.go
    path of file: ./repos/devspace/vendor/k8s.io/apimachinery/pkg/runtime/schema
    
    the code of the file until where you have to start completion: /*
Copyright 2015 The Kubernetes Authors.

Licensed under 
    
func ParseGroupVersion(gv string) (GroupVersion, error) {
	// this can be the internal version for the legacy kube types
	// TODO once we've cleared the last uses as strings, this special case should be removed.
	if (len(gv) == 0) || (gv == "/") {
		return GroupVersion{}, nil
	}

	switch strings.Count(gv, "/") {
	case 0:
		return GroupVersion{"", gv}, nil
	case 1:
		i := strings.Index(gv, "/")
		return GroupVersion{gv[:i], gv[i+1:]}, nil
	default:
		return GroupVersion{}, fmt.Errorf("unexpected GroupVersion string: %v", gv)
	}
}