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langchain-data-handling

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plugins/saas-packs/langchain-py-pack/skills/langchain-data-handling/SKILL.md

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# LangChain Data Handling — Loaders and Splitters (Python)

## Overview

You have a RAG system over a Python docs site. A user asks "what does
`trim_messages` do?" and the retriever returns this chunk:

```
### `trim_messages(strategy="last", include_system=True)`

Trim a message history to fit a token budget. The newest messages are kept;
older messages are dropped. Pass `include_system=True` to preserve the system
```

...and that's it. The chunk ends there. The code example showing the function
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