onMemberUpdate property Null safety
final
Observer for updating the profile of a group member.
If the upper layer of the application caches the profile of group users, update the cache using this interface.
The observer. The parameter is the list of group members whose profiles are updated.
register true: register; false: unregister
Implementation
//ignore: close_sinks
final StreamController<List<NIMSuperTeamMember>> onMemberUpdate =
StreamController<List<NIMSuperTeamMember>>.broadcast();