---
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.
///

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