pre-commit renamed files to PEP standard and removed unused imports

tests/image_download_test.py

@@ -0,0 +1,29 @@
+from __future__ import annotations
+
+import os
+from pathlib import Path
+
+from database import connect
+from database import VisualCommunication
+from dotenv import load_dotenv
+
+if __name__ == '__main__':
+    # prepare env vars
+    env_path = Path(__file__).parent.parent / 'local.env'
+    assert env_path.exists()
+    load_dotenv(env_path)
+    os.environ['MONGO_HOST'] = 'localhost'
+    # connect to database
+    collection, db, client = connect()
+    print(client.server_info())
+    # download images
+    data = None
+    for data in collection.find().limit(3):
+        if data is None:
+            print('no document found')
+            break
+        vis_com: VisualCommunication = VisualCommunication.model_validate(data)
+        print(repr(vis_com))
+    if data is not None:
+        print(vis_com.image)
+        print(vis_com.model_dump())