Where is the source json schema for cloudflare api v4?

Assuming the docs at https://api.cloudflare.com/ are generated using this toolchain, where are the corresponding source schema definitions?

They would be useful when creating/maintaining cloudflare api clients in other languages.

Found a reference to api.cloudflare.com/schemas/v4 but it doesn’t seem to be accessible.

Posted a github issue yesterday, no response.

- John