toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (commonUsageWithinTimeRange != null)
'commonUsageWithinTimeRange': commonUsageWithinTimeRange!,
if (favoriteCount != null) 'favoriteCount': favoriteCount!,
if (updateTime != null) 'updateTime': updateTime!,
if (usageWithinTimeRange != null)
'usageWithinTimeRange': usageWithinTimeRange!,
};