d899681040
## Summary Add XML format option for `get_buffer_string()` to provide unambiguous message serialization. This fixes role prefix ambiguity when message content contains strings like "Human:" or "AI:". Fixes #34786 ## Changes - Add `format="xml"` parameter with proper XML escaping using `quoteattr()` for attributes - Add explicit validation for format parameter (raises `ValueError` for invalid values) - Add comprehensive tests for XML format edge cases <img width="1952" height="706" alt="image" src="https://github.com/user-attachments/assets/1cd6f887-9365-43cf-a532-72d7addd8bad" /> <img width="2786" height="776" alt="image" src="https://github.com/user-attachments/assets/a07b0db0-519c-46d7-b34b-b404237d812b" /> --------- Co-authored-by: Mason Daugherty <github@mdrxy.com> Co-authored-by: Mason Daugherty <mason@langchain.dev>
Packages
Important
This repository is structured as a monorepo, with various packages located in this libs/ directory. Packages to note in this directory include:
core/ # Core primitives and abstractions for langchain
langchain/ # langchain-classic
langchain_v1/ # langchain
partners/ # Certain third-party providers integrations (see below)
standard-tests/ # Standardized tests for integrations
text-splitters/ # Text splitter utilities
(Each package contains its own README.md file with specific details about that package.)
Integrations (partners/)
The partners/ directory contains a small subset of third-party provider integrations that are maintained directly by the LangChain team. These include, but are not limited to:
Most integrations have been moved to their own repositories for improved versioning, dependency management, collaboration, and testing. This includes packages from popular providers such as Google and AWS. Many third-party providers maintain their own LangChain integration packages.
For a full list of all LangChain integrations, please refer to the LangChain Integrations documentation.