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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 get_bar_config_list(self):
 """ Get list of bar IDs as active in the connected i3 session. :rtype: List of strings that can be fed as ``bar_id`` into :meth:`get_bar_config`. """

        data = self.message(MessageType.GET_BAR_CONFIG, '')
        return json.loads(data)