public async Task SendGroupMessage(LivechatMessagePack messagePack) { if (messagePack.FromConnectionId == null) { messagePack.FromConnectionId = hubContext.ConnectionId; } if (messagePack.IsPersistent) { await messageLogger.CreateLog(messagePack); } await clientsManager .Group(messagePack.ChannelId) .SendAsync(HubMessages.SEND, messagePack); }