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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_config_dict(self):
 """Reconstruct the nested structure of this object's configuration and return it as a dict. """

        config_dict = {}
        for dotted_key, value in self.get_config_values().items():
            subkeys = dotted_key.split('.')
            d = config_dict
            for key in subkeys:
                d = d.setdefault(key, value if key == subkeys[-1] else {})
        return config_dict