Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
• What's the actual output vs expected output?
• [Optional] Sponsorship to speed up the bug fix or feature request (example)

Description

Generation is successful, but for recursive models the imports are missing, when trying to generate from https://github.com/hashintel/hash/blob/main/apps/hash-graph/openapi/openapi.json you can see how in models/filter.py the import for AnyFilter is missing and how in models/any_filter.py the import is missing for Filter.

openapi-generator version

6.6.0

OpenAPI declaration file content or URL

https://github.com/hashintel/hash/blob/main/apps/hash-graph/openapi/openapi.json

Generation Details

    "generatorName": "python-nextgen",
    "packageName": "hash_openapi",

Steps to reproduce

Simply generate with the aforementioned schema

Related issues/PRs

Suggest a fix