toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (description != null) 'description': description!,
if (id != null) 'id': id!,
if (kind != null) 'kind': kind!,
if (localizedDescription != null)
'localizedDescription': localizedDescription!,
if (uri != null) 'uri': uri!,
};