toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (createTime != null) 'createTime': createTime!,
if (messages != null) 'messages': messages!,
if (name != null) 'name': name!,
if (notificationType != null) 'notificationType': notificationType!,
if (subject != null) 'subject': subject!,
};