remove unused imports, get a visit-tar file

tests/test_datalad_workflows/test_pipeline.py

@@ -1,7 +1,6 @@
 from __future__ import annotations
 
 import json
-import logging
 import os
 from pathlib import Path
 from typing import Iterable
@@ -14,7 +13,6 @@
 from datalad.api import clone
 from datalad.distribution.dataset import Dataset
 from datalad.runner.runner import WitlessRunner
-from datalad.tests.utils_pytest import on_appveyor
 from datalad_catalog.webcatalog import WebCatalog
 from datalad_next.credman import CredentialManager
 
@@ -173,6 +171,7 @@ def test_pipeline(tmp_path: Path,
             )
             # pull all individual DICOM files, this will internally
             # access/download the archive at the store
+            dataset.get(f'icf/{visit}_dicom.tar')
             dataset.get(f'{study}_{visit}')
 
     # 3. Test catalog generation