Python HTTP-Clients from OpenAPI

When I've ever tried to use these sorts of things, they're almost always pretty clunky. They can be an OK basis for building a client library on top of, but you rarely want to expose things exactly as the API does.

* Sync&#x2F;Async clients<p>* Pydantic v1 &amp;&amp; v2 support<p>* Generate client as python-package<p>* Prometheus Metrics<p>Take a look, good stuff!