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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 _parse_attributes(self, element_name, package_class, namespace=''):
 """ Returns an instance of the package_class instantiated with a dictionary of the attributes from element_name in the specified namespace of the RSS feed. """

        return package_class(
            self._channel.find(
                './/{0}{1}'.format(namespace, element_name)
            ).attrib
        )