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core[minor],community[minor]: Upgrade all @root_validator() to @pre_init (#23841)

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This PR introduces a @pre_init decorator that's a @root_validator(pre=True) but with all the defaults populated!
This commit is contained in:
Eugene Yurtsev
2024-07-08 16:09:29 -04:00
committed by GitHub
parent f152d6ed3d
commit 2c180d645e
114 changed files with 439 additions and 276 deletions
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4
libs/community/langchain_community/chat_models/vertexai.py
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@@ -27,7 +27,7 @@ from langchain_core.messages import (
SystemMessage,
)
from langchain_core.outputs import ChatGeneration, ChatGenerationChunk, ChatResult
from langchain_core.pydantic_v1 import root_validator
from langchain_core.utils import pre_init
from langchain_community.llms.vertexai import (
_VertexAICommon,
@@ -225,7 +225,7 @@ class ChatVertexAI(_VertexAICommon, BaseChatModel):
"""Get the namespace of the langchain object."""
return ["langchain", "chat_models", "vertexai"]
@root_validator()
@pre_init
def validate_environment(cls, values: Dict) -> Dict:
"""Validate that the python package exists in environment."""
is_gemini = is_gemini_model(values["model_name"])