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fix: handle TypeGuard import for compatibility with older Python versions

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Mason Daugherty 2025-08-04 13:06:42 -04:00
parent a3929c71e4
commit 719c9dfaaa
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1 changed files with 6 additions and 1 deletions
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7
libs/core/langchain_core/messages/content_blocks.py
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@ -103,9 +103,14 @@ The module defines several types of content blocks, including:
""" # noqa: E501
import warnings
from typing import Any, Literal, Optional, TypeGuard, Union
from typing import Any, Literal, Optional, Union
from uuid import uuid4
try:
from typing import TypeGuard
except ImportError:
from typing_extensions import TypeGuard
from typing_extensions import NotRequired, TypedDict, get_args, get_origin