Evaluating the impact of chunk size on evaluation metrics

Hey everyone,

I made a simple example using my local ollama, i am testing how a different chunk sizes affect some evaluation metrics.

I am wondering what is the intended way to use Settings. I set Settings.llm=<evaluator_model> but then when i am generating answers i have to change Settings.chunk_size so i set Settings.llm=<evaluatee_model> and then change it back when i am done. Should Settings be set once? Or is there a better way to do this?

Thanks!