toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (activities != null) 'activities': activities!,
if (dataSource != null) 'dataSource': dataSource!,
if (deviceCategory != null) 'deviceCategory': deviceCategory!,
if (platform != null) 'platform': platform!,
if (sessionDate != null) 'sessionDate': sessionDate!,
if (sessionId != null) 'sessionId': sessionId!,
};