toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (currentTimeMillis != null) 'currentTimeMillis': currentTimeMillis!,
if (kind != null) 'kind': kind!,
if (requestId != null) 'requestId': requestId!,
if (timePeriods != null) 'timePeriods': timePeriods!,
};