def set_default_version(self, project_id, model_name, version_name):
        """
        
        """
        full_version_name = 'projects/{}/models/{}/versions/{}'.format(
            project_id, model_name, version_name)
        request = self._mlengine.projects().models().versions().setDefault(
            name=full_version_name, body={})

        try:
            response = request.execute()
            self.log.info('Successfully set version: %s to default', response)
            return response
        except HttpError as e:
            self.log.error('Something went wrong: %s', e)
            raise