From b9fad28f5e093415d76aeb71b5e555eb87fd2ec2 Mon Sep 17 00:00:00 2001
From: bholagabbar <11693595+bholagabbar@users.noreply.github.com>
Date: Wed, 4 Oct 2023 16:55:02 -0400
Subject: [PATCH] Fix typing imports in extraction usecase (#11402)

The person class here:
https://python.langchain.com/docs/use_cases/extraction#pydantic-1 has
attributes `dog_breed` and `dog_name` that use `Optional` from typing,
but it hasn't been imported. Fixed the import here
---
 docs/extras/use_cases/extraction.ipynb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/extras/use_cases/extraction.ipynb b/docs/extras/use_cases/extraction.ipynb
index 628026127..b60702975 100644
--- a/docs/extras/use_cases/extraction.ipynb
+++ b/docs/extras/use_cases/extraction.ipynb
@@ -443,7 +443,7 @@
     }
    ],
    "source": [
-    "from typing import Sequence\n",
+    "from typing import Sequence, Optional\n",
     "from langchain.prompts import (\n",
     "    PromptTemplate,\n",
     "    ChatPromptTemplate,\n",