code: def welcome(self, user):
          
          self.send_message(create_message('RoomServer', 'Please welcome {name} to the server!\nThere are currently {i} users online -\n {r}\n'.format(name=user.id, 
                            i=self.amount_of_users_connected, 
                            r=' '.join(self.user_names))))
          logging.debug('Welcoming user {user} to {room}'.format(user=user.id.name, room=self.name))
docs: welcomes a user to the roomserver