toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (duration != null) 'duration': duration!,
if (otherRegionsConfig != null)
'otherRegionsConfig': otherRegionsConfig!,
if (recurrenceCount != null) 'recurrenceCount': recurrenceCount!,
if (regionalConfigs != null) 'regionalConfigs': regionalConfigs!,
};