toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (detailOfMessage != null) 'detailOfMessage': detailOfMessage!,
if (event != null) 'event': event!,
if (pubsubCondition != null) 'pubsubCondition': pubsubCondition!,
if (topic != null) 'topic': topic!,
};