toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (maxImpressions != null) 'maxImpressions': maxImpressions!,
if (maxViews != null) 'maxViews': maxViews!,
if (timeUnit != null) 'timeUnit': timeUnit!,
if (timeUnitCount != null) 'timeUnitCount': timeUnitCount!,
if (unlimited != null) 'unlimited': unlimited!,
};