Boost API

> Mirrored from weaviate/weaviate-python-client#2068 (https://github.com/weaviate/weaviate-python-client/issues/2068)

PRs for reference: 
- code: https://github.com/weaviate/weaviate-python-client/pull/2030
- docstrings: https://github.com/weaviate/weaviate-python-client/pull/2057 