func (u UID) MarshalJSON() ([]byte, error) {
	if u.IsZero() {
		return []byte("null"), nil
	}
	var b bytes.Buffer
	fmt.Fprintf(&b, "%q", u.RDF())
	return b.Bytes(), nil
}
// MarshalJSON is part of JSON
MarshalJSON is part of JSON
// MarshalJSON is part of JSON
func (u UID) MarshalJSON() ([]byte, error) {
	if u.IsZero() {
		return []byte("null"), nil
	}
	var b bytes.Buffer
	fmt.Fprintf(&b, "%q", u.RDF())
	return b.Bytes(), nil
}
func ( u UID ) MarshalJSON ( ) ( [ ] byte , error ) { if u . IsZero ( ) { return [ ] byte ( " " ) , nil } var b bytes . Buffer fmt . Fprintf ( & b , " " , u . RDF ( ) ) return b . Bytes ( ) , nil }
MarshalJSON is part of JSON
MarshalJSON is part of JSON