toJson method
Implementation
Map<String, dynamic> toJson() => {
'type': type.name,
if (collection != null) 'collection': collection,
if (recordId != null) 'recordId': recordId,
if (data != null) 'data': data,
if (timestamp != null) 'timestamp': timestamp!.toIso8601String(),
if (metadata != null) 'metadata': metadata,
};