diff --git a/catalystwan/models/configuration/feature_profile/sdwan/topology/__init__.py b/catalystwan/models/configuration/feature_profile/sdwan/topology/__init__.py
new file mode 100644
index 00000000..ef6064fd
--- /dev/null
+++ b/catalystwan/models/configuration/feature_profile/sdwan/topology/__init__.py
@@ -0,0 +1,26 @@
+from typing import List, Union
+from typing_extensions import Annotated
+
+from pydantic import Field
+
+from catalystwan.models.configuration.feature_profile.sdwan.topology.hubspoke import HubSpokeParcel
+from catalystwan.models.configuration.feature_profile.sdwan.topology.mesh import MeshParcel
+
+
+AnyTopologyParcel = Annotated[
+    Union[
+        MeshParcel,
+        HubSpokeParcel,
+    ],
+    Field(discriminator="type_"),
+]
+
+__all__ = [
+    "AnyTopologyParcel",
+    "HubSpokeParcel"
+    "MeshParcel",
+]
+
+
+def __dir__() -> "List[str]":
+    return list(__all__)