Ask HN: Python Meta-Client for OpenAI, Anthropic, Gemini and other LLM API-s?

I am looking for a Python library that generalizes over popular LLM API-s without sacrificing full control (need to use tools, control temp, seed, top-p etc).

Simon Willison llm seems close but seems to focus much on the CLI and not the library, also doesn't seem to give precise control for non-OpenAI models (might be wrong here).