added model io functions

shared/data_store/get_model.py

@@ -0,0 +1,14 @@
+"""Definition of get_model function."""
+
+from minio import Minio
+from torch.nn import Module
+
+
+def get_model(
+    client: Minio,
+    object_name: str,
+) -> Module:
+    """Get model from model subfolder in bucket in Minio."""
+    assert isinstance(client, Minio)
+    assert isinstance(object_name, str)
+    raise NotImplementedError()