poetry lock the experimental package. (#9478)

libs/experimental/tests/integration_tests/chains/test_cpal.py

@@ -5,12 +5,12 @@ import unittest
 from typing import Type
 from unittest import mock
 
-import pydantic
 import pytest
 from langchain import OpenAI
 from langchain.output_parsers import PydanticOutputParser
 from langchain.prompts.prompt import PromptTemplate
 
+from langchain_experimental import pydantic_v1 as pydantic
 from langchain_experimental.cpal.base import (
     CausalChain,
     CPALChain,