toJson method Null safety

Map<String, dynamic> toJson()

Implementation

core.Map<core.String, core.dynamic> toJson() => {
      if (computedClickThroughUrl != null)
        'computedClickThroughUrl': computedClickThroughUrl!,
      if (customClickThroughUrl != null)
        'customClickThroughUrl': customClickThroughUrl!,
      if (landingPageId != null) 'landingPageId': landingPageId!,
    };