ChatterBox.Server.ChatterBoxServer.UnregisteredConnection_OnRegister C# (CSharp) Method

        private void UnregisteredConnection_OnRegister(UnregisteredConnection sender, Registration message)
        {
            var domain = GetOrAddDomain(message.Domain);
            UnregisteredConnection connection;
            UnregisteredConnections.TryRemove(sender.Id, out connection);
            connection.OnRegister -= UnregisteredConnection_OnRegister;
            domain.HandleRegistration(connection, message);
        }
    }