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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 return_opml_response(self, context, **response_kwargs):
        '''
        Returns export data as an opml file.
        '''
        self.template_name = 'fiction_outlines/outline.opml'
        response = super().render_to_response(context, content_type='text/xml', **response_kwargs)
        response['Content-Disposition'] = 'attachment; filename="{}.opml"'.format(slugify(self.object.title))
        return response