arcticfly

### Changes * Add section on docs in CONTRIBUTING.md

Add @art.rollout decorator to gather trajectories

6

## Proposal * Create an `@art.rollout` decorator which wraps a rollout function and constructs a trajectory (potentially with multiple histories) automatically, similar to how `@weave.op` automatically wraps an LLM-enabled function...

Wikihop with group judge

1

### Changes * Add wikihop/wikihop.ipynb notebook in examples * Add wikihop/judge_group.py with generalized group judgement function

It is currently possible to exclude large objects like trajectories when pulling models from s3 through the `LocalBackend`. We should do the same for the `SkyPilotBackend`.

Docs on decision-making process for choosing batch size, learning rate, etc?

1

At a first approximation, it's not obvious how to think about choosing a batch size and learning rate. Small batches reduce inference overhead on the GPUs and generally reduce iteration...