[PR #2552] langgraph: relax graph validation to handle nodes without return typehints #2773

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2026-02-20T17:47:33-05:00

yindo commented

2026-02-20 17:47:33 -05:00

Original Pull Request: https://github.com/langchain-ai/langgraph/pull/2552

State: closed
Merged: Yes

This allows building StateGraph where nodes are runnables returning GraphCommand (but don't have a notion of a return type hint), for example ToolNode

**Original Pull Request:** https://github.com/langchain-ai/langgraph/pull/2552 **State:** closed **Merged:** Yes --- This allows building `StateGraph` where nodes are runnables returning `GraphCommand` (but don't have a notion of a return type hint), for example `ToolNode`

yindo added the pull-request label 2026-02-20 17:47:33 -05:00

yindo closed this issue

2026-02-20 17:47:33 -05:00

yindo referenced this issue

2026-02-20 17:47:47 -05:00

[PR #2773] docs: update structured output how-to guide #2916

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Reference: langchain-ai/langgraph#2773