[Feature]: Expose Types to allow argumentation like jest and vitest

[ikezedev]

What problem does this feature solve?

Jest and Vitest exposes there internal types which allows people to author libraries that arguments their capabilities.
See an example here https://github.com/m-radzikowski/aws-sdk-client-mock/blob/main/packages/aws-sdk-client-mock-jest/src/vitest.ts.

If there is anyone to guide me, I can try to submit a Pr for this.

What does the proposed API look like?

Same, just typedefs exported.

[9aoy]

PR welcome 👍

You can re-export some existing Rstest types as public APIs, similar to how Jest and Vitest do it. A good starting point is this file: https://github.com/web-infra-dev/rstest/blob/7f66f0ffc413dd8ae4e1ee904ec2ab4a71484729/packages/core/src/runtime/api/public.ts