def get_export_dir(self, instance_name):
    dir_name = os.path.join('export', instance_name)
    return self._get_instances_sub_dir(dir_name, create_dir=True, remove_dir=True)
def get_export_dir(self, instance_name):
    dir_name = os.path.join('export', instance_name)
    return self._get_instances_sub_dir(dir_name, create_dir=True, remove_dir=True)