Hi, it's my first take on openapi, I'm trying to generate an API for interfacing Siemens Polarion ALM. They provide a playground server at https://testdrive.polarion.com/polarion/rest/v1. When I do openapi-python-client generate --url https://testdrive.polarion.com/polarion/rest/v1/definition I get tons of warnings like this:

Warning(s) encountered while generating. Client was generated, but some pieces may be missing
WARNING parsing GET /projects/{projectId}/collections/{collectionId}/relationships/{relationshipId} within collections.
Invalid response status code 4XX-5XX (not a valid HTTP status code), response will be omitted from generated client

Plus some more, but I'll deal with them later.
What's the best solution in the case where the API specifies a status code range like that? Should I contact Siemens about that or patch the API json or just ignore it?

Additionally, my basic API calls return None, I'm pretty sure this has nothing to do with the above warning, but wanted to make sure...