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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def disconnect(self, user):
 """ Disconnect a user and send a message to the connected clients """

        self.remove_user(user)
        self.send_message(create_message('RoomServer', 'Please all say goodbye to {name}!'.format(name=user.id.name)))
        self.send_message(create_disconnect(user.id.name))