YAML Alias Help on the Recreation.gov Python Client

[juftin]

I've been working to automate a Python Client built of the Recreation Information Database, hosted by Recreation.gov: https://ridb.recreation.gov/docs/. The project is hosted on this repo: https://github.com/juftin/recdotgov-client

I've gotten to the point where everything is working but I just realized that some of the Aliases and Anchors defined on the Spec File aren't being recognized downstream on the Client. For example, the /recareas endpoint returns a dict with two keys, "RECDATA" and "METADATA". Their Swagger Docs confirm this too: https://ridb.recreation.gov/docs/#/Recreation%20Areas/getRecAreas. But when I feed their spec file into swagger-codegen the corresponding API Client only has the "RECDATA" key and is missing "METADATA" since it uses a YAML Alias in the spec file.

Here's the Spec File in question: https://github.com/juftin/recdotgov-client/blob/947460ed56776195c8af00d79cd054f5f8c4651e/openapi.yaml#L1276-L1288

And here's the Python generated code: https://github.com/juftin/recdotgov-client/blob/947460ed56776195c8af00d79cd054f5f8c4651e/recdotgov_client/models/inline_response2001.py#L19

Not knowing a whole lot about Swagger I'm a little lost here. Is there a way to get swagger-codegen to recognizes these anchors/aliases? Is their spec file just a weird, proprietary version? I've been using the swagger-codegen-cli-v3 Docker image to generate the client.