Justin Chu

> Do you have an API in mind? Not yet, but I would love to explore some options

OpSchema; constraint language; users can generate c++ version of the opchema registration

Types of constraints: Input shape, attribute values (a cannot be true when b is true, etc.)

Can the constraint language itself be onnx?

Related: - https://github.com/onnx/onnx/issues/5004 - https://github.com/onnx/onnx/issues/2285 - https://github.com/onnx/onnx/issues/3876

Would it make sense for it to throw errors anyways, and then let the user decide what errors to catch and ignore? This way we can simplify the interface and...

Please feel free to update https://github.com/onnx/onnx/blob/main/.github/workflows/release_win.yml. @jcwchen can correct me or provide more info.

GitHub actions doesn't provide windows arm machines yet. Do you know if there is a good way to cross compile from an x64 machine?

Nit: "convertion" -> "conversion"

Is this ready for reviews?