ChannelEvent constructor Null safety
- {required ChannelType channelType,
 - required String channelUrl,
 - required ChannelEventCategory category,
 - required Map<
String, dynamic> data, - int? ts,
 - int? messageOffset}
 
Implementation
ChannelEvent({
  required this.channelType,
  required this.channelUrl,
  required this.category,
  required this.data,
  this.ts,
  this.messageOffset,
});