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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 update_from_dict(self, dct):
 """ Updates this configuration object from a dictionary. See :meth:`ConfigurationObject.update` for details. :param dct: Values to update the ConfigurationObject with. :type dct: dict """

        if not dct:
            return
        all_props = self.__class__.CONFIG_PROPERTIES
        for key, value in six.iteritems(dct):
            attr_config = all_props.get(key)
            if attr_config:
                setattr(self, key, value)
            else:
                self.update_default_from_dict(key, value)