Microsoft.AspNetCore.SignalR.PersistentConnection.GetDefaultSignals C# (CSharp) Method

        private IList<string> GetDefaultSignals(string userId, string connectionId)
        {
            // The list of default signals this connection cares about:
            // 1. The default signal (the type name)
            // 2. The connection id (so we can message this particular connection)

            return new string[] {
                DefaultSignal,
                PrefixHelper.GetConnectionId(connectionId)
            };
        }