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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 to_dict(self, prefix=None):
        '''
        Converts recursively the Config object into a valid dictionary.

        :param prefix: A string to optionally prefix all key elements in the
                       returned dictonary.
        '''

        conf_obj = dict(self)
        return self.__dictify__(conf_obj, prefix)