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core[patch]: fix init of RunnableAssign (#26903)

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Example in API ref currently raises ValidationError.

Resolves https://github.com/langchain-ai/langchain/issues/26862
This commit is contained in:
ccurme
2024-10-01 14:21:54 -04:00
committed by GitHub
parent f7583194de
commit 9d10151123
2 changed files with 13 additions and 1 deletions
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libs/core/langchain_core/runnables/passthrough.py
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@@ -389,7 +389,7 @@ class RunnableAssign(RunnableSerializable[dict[str, Any], dict[str, Any]]):
# returns {'input': 5, 'add_step': {'added': 15}}
"""
mapper: RunnableParallel[dict[str, Any]]
mapper: RunnableParallel
def __init__(self, mapper: RunnableParallel[dict[str, Any]], **kwargs: Any) -> None:
super().__init__(mapper=mapper, **kwargs) # type: ignore[call-arg]