Python SDK v0.22.1

Changelog

Bug Fixes

• (langchain) Preserve anthropic cache metrics (#455)
• (claude-agent-sdk) Improve error logging (#450)

Other Changes

• (logger) Accept serializable objects as metadata (#437)

Package: https://pypi.org/project/braintrust/0.22.1/

Full Changelog: py-sdk-v0.22.0...py-sdk-v0.22.1