sendIsTyping method
Implementation
@override
void sendIsTyping(bool isTyping, String bareRoom) {
TypingIndicatorMessage message = TypingIndicatorMessage(
id: const Uuid().v4(),
type: MessageType.typing,
isTyping: isTyping,
roomId: bareRoom);
String topic = bareRoom.toRoomEventsTopic;
clientHandler.sendPayload(message.toJson().toString(), topic);
}