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.venv/Lib/site-packages/sqlalchemy/dialects/_typing.py

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+# dialects/_typing.py
+# Copyright (C) 2005-2026 the SQLAlchemy authors and contributors
+# <see AUTHORS file>
+#
+# This module is part of SQLAlchemy and is released under
+# the MIT License: https://www.opensource.org/licenses/mit-license.php
+from __future__ import annotations
+
+from typing import Any
+from typing import Iterable
+from typing import Mapping
+from typing import Optional
+from typing import Union
+
+from ..sql import roles
+from ..sql.base import ColumnCollection
+from ..sql.schema import Column
+from ..sql.schema import ColumnCollectionConstraint
+from ..sql.schema import Index
+
+_OnConflictConstraintT = Union[str, ColumnCollectionConstraint, Index, None]
+_OnConflictIndexElementsT = Optional[
+    Iterable[Union[Column[Any], str, roles.DDLConstraintColumnRole]]
+]
+_OnConflictIndexWhereT = Optional[roles.WhereHavingRole]
+_OnConflictSetT = Optional[
+    Union[Mapping[Any, Any], ColumnCollection[Any, Any]]
+]
+_OnConflictWhereT = Optional[roles.WhereHavingRole]