Description When using JSON schemas with union types specified as arrays (e.g., {"type": ["string", "null"]}), outlines fails with a ValueError: "'type' must be a string". This prevents the use of ...

Powershell's "ConvertFrom-Json" correctly handles it in both cases, dumping either 1 or 2+ items into an array, which I understand is more loosely typed. It depends on your definition of "correct".