setState method
Implementation
void setState(GroupCallState newState) {
state = newState;
// ignore: deprecated_member_use_from_same_package
onGroupCallState.add(newState);
// ignore: deprecated_member_use_from_same_package
onGroupCallEvent.add(GroupCallStateChange.groupCallStateChanged);
matrixRTCEventStream.add(GroupCallStateChanged(newState));
}