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#https://www.notion.so/n8n/Frontmatter-432c2b8dff1f43d4b1c8d20075510fe4
description: n8n provides these methods to make it easier to perform common tasks in the LangChain Code node.
contentType: reference
hide:
- toc
---
# LangChain Code node methods
n8n provides these methods to make it easier to perform common tasks in the [LangChain Code node](/integrations/builtin/cluster-nodes/root-nodes/n8n-nodes-langchain.code.md).
/// note | LangChain Code node only
These variables are for use in expressions in the LangChain Code node. You can't use them in other nodes.
///
--8<-- "_snippets/integrations/builtin/cluster-nodes/langchain-root-nodes/langchaincode/builtin-methods.md"
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