def METHOD_NAME(self):
    self.trash = []
    params = self.params.copy()
    params.setdefault("target_path", data_dir.get_data_dir())
    for snapshot_tag in self.snapshot_chain:
        image = sp_admin.volume_define_by_params(snapshot_tag, params)
        image.hotplug(self.main_vm)
        self.trash.append(image)