Elasticsearch 6 Python Client

The `elasticsearch6` library is the official low-level Python client for Elasticsearch, specifically designed for compatibility with Elasticsearch 6.x servers. It provides a foundation for interacting with Elasticsearch, focusing on being opinion-free and highly extendable. While the main `elasticsearch` client has progressed to newer major versions (e.g., 9.x), `elasticsearch6` remains available on PyPI to support applications tied to Elasticsearch 6.x. It was last released in March 2021.