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Author: forest-benchling

openapi_python_client/parser/properties/__init__.py

@@ -407,12 +407,11 @@ def _property_from_data(
     if isinstance(data, oai.Reference):
         return _property_from_ref(name=name, required=required, nullable=False, data=data, schemas=schemas)
 
-    for attribute in ["allOf", "anyOf", "oneOf"]:
-        sub_data = getattr(data, attribute)
-        if sub_data and len(sub_data) == 1 and isinstance(sub_data[0], oai.Reference):
-            return _property_from_ref(
-                name=name, required=required, nullable=data.nullable, data=sub_data[0], schemas=schemas
-            )
+    sub_data = (data.allOf or []) + data.anyOf + data.oneOf
+    if len(sub_data) == 1 and isinstance(sub_data[0], oai.Reference):
+        return _property_from_ref(
+            name=name, required=required, nullable=data.nullable, data=sub_data[0], schemas=schemas
+        )
 
     if data.enum:
         return build_enum_property(