diff --git a/packages/bigframes/bigframes/core/utils.py b/packages/bigframes/bigframes/core/utils.py
index b219335a516e..9492ca497839 100644
--- a/packages/bigframes/bigframes/core/utils.py
+++ b/packages/bigframes/bigframes/core/utils.py
@@ -16,12 +16,11 @@
 import re
 import typing
 import warnings
-from typing import Hashable, Iterable, List
+from typing import Hashable, Iterable, List, TypeGuard
 
 import bigframes_vendored.pandas.io.common as vendored_pandas_io_common
 import numpy as np
 import pandas as pd
-import typing_extensions
 
 import bigframes.exceptions as bfe
 
@@ -29,7 +28,7 @@
 UNNAMED_INDEX_ID = "bigframes_unnamed_index"
 
 
-def is_gcs_path(value) -> typing_extensions.TypeGuard[str]:
+def is_gcs_path(value) -> TypeGuard[str]:
     return isinstance(value, str) and value.startswith("gs://")
 
 
@@ -43,11 +42,11 @@ def get_axis_number(axis: typing.Union[str, int]) -> typing.Literal[0, 1]:
 
 def is_list_like(
     obj: typing.Any, allow_sets: bool = True
-) -> typing_extensions.TypeGuard[typing.Sequence]:
+) -> TypeGuard[typing.Sequence]:
     return pd.api.types.is_list_like(obj, allow_sets=allow_sets)
 
 
-def is_dict_like(obj: typing.Any) -> typing_extensions.TypeGuard[typing.Mapping]:
+def is_dict_like(obj: typing.Any) -> TypeGuard[typing.Mapping]:
     return pd.api.types.is_dict_like(obj)
 
 
diff --git a/packages/bigframes/bigframes/series.py b/packages/bigframes/bigframes/series.py
index 0091d0a34b6c..9d61cc9778fe 100644
--- a/packages/bigframes/bigframes/series.py
+++ b/packages/bigframes/bigframes/series.py
@@ -33,6 +33,7 @@
     Optional,
     Sequence,
     Tuple,
+    TypeGuard,
     TypeVar,
     Union,
     cast,
@@ -45,7 +46,6 @@
 import numpy
 import pandas
 import pyarrow as pa
-import typing_extensions
 from pandas.api import extensions as pd_ext
 
 import bigframes.core
@@ -2825,5 +2825,5 @@ def _throw_if_null_index(self, opname: __builtins__.str):
             )
 
 
-def _is_list_like(obj: typing.Any) -> typing_extensions.TypeGuard[typing.Sequence]:
+def _is_list_like(obj: typing.Any) -> TypeGuard[typing.Sequence]:
     return pandas.api.types.is_list_like(obj)
diff --git a/packages/bigframes/third_party/bigframes_vendored/ibis/common/bases.py b/packages/bigframes/third_party/bigframes_vendored/ibis/common/bases.py
index 2d5d798c318f..17dbc683c572 100644
--- a/packages/bigframes/third_party/bigframes_vendored/ibis/common/bases.py
+++ b/packages/bigframes/third_party/bigframes_vendored/ibis/common/bases.py
@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import collections.abc
+import sys
 from abc import abstractmethod
 from typing import TYPE_CHECKING, Any
 from weakref import WeakValueDictionary
@@ -10,7 +11,10 @@
 if TYPE_CHECKING:
     from collections.abc import Mapping
 
-    from typing_extensions import Self
+    if sys.version_info >= (3, 11):
+        from typing import Self
+    else:
+        from typing_extensions import Self
 
 
 class AbstractMeta(type):
diff --git a/packages/bigframes/third_party/bigframes_vendored/ibis/common/collections.py b/packages/bigframes/third_party/bigframes_vendored/ibis/common/collections.py
index 718b94235dd7..4740a47900db 100644
--- a/packages/bigframes/third_party/bigframes_vendored/ibis/common/collections.py
+++ b/packages/bigframes/third_party/bigframes_vendored/ibis/common/collections.py
@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import collections.abc
+import sys
 from abc import abstractmethod
 from itertools import tee
 from typing import TYPE_CHECKING, Any, Generic, TypeVar
@@ -12,7 +13,10 @@
 from public import public
 
 if TYPE_CHECKING:
-    from typing_extensions import Self
+    if sys.version_info >= (3, 11):
+        from typing import Self
+    else:
+        from typing_extensions import Self
 
 K = TypeVar("K", bound=collections.abc.Hashable)
 V = TypeVar("V")
diff --git a/packages/bigframes/third_party/bigframes_vendored/ibis/common/graph.py b/packages/bigframes/third_party/bigframes_vendored/ibis/common/graph.py
index 9bf13e93ecf6..7e9d4eae02e7 100644
--- a/packages/bigframes/third_party/bigframes_vendored/ibis/common/graph.py
+++ b/packages/bigframes/third_party/bigframes_vendored/ibis/common/graph.py
@@ -5,6 +5,7 @@
 from __future__ import annotations
 
 import itertools
+import sys
 from abc import abstractmethod
 from collections import deque
 from collections.abc import Callable, Iterable, Iterator, KeysView, Mapping, Sequence
@@ -16,7 +17,10 @@
 from bigframes_vendored.ibis.util import experimental, promote_list
 
 if TYPE_CHECKING:
-    from typing_extensions import Self
+    if sys.version_info >= (3, 11):
+        from typing import Self
+    else:
+        from typing_extensions import Self
 
     N = TypeVar("N")
 
diff --git a/packages/bigframes/third_party/bigframes_vendored/ibis/common/grounds.py b/packages/bigframes/third_party/bigframes_vendored/ibis/common/grounds.py
index 874e18c40574..64a4f6502418 100644
--- a/packages/bigframes/third_party/bigframes_vendored/ibis/common/grounds.py
+++ b/packages/bigframes/third_party/bigframes_vendored/ibis/common/grounds.py
@@ -2,6 +2,7 @@
 from __future__ import annotations
 
 import contextlib
+import sys
 from copy import copy
 from typing import Any, ClassVar, Union, get_origin
 
@@ -23,7 +24,11 @@
 from bigframes_vendored.ibis.common.collections import FrozenDict  # noqa: TCH001
 from bigframes_vendored.ibis.common.patterns import Pattern
 from bigframes_vendored.ibis.common.typing import evaluate_annotations
-from typing_extensions import Self, dataclass_transform
+
+if sys.version_info >= (3, 11):
+    from typing import Self, dataclass_transform
+else:
+    from typing_extensions import Self, dataclass_transform
 
 
 class AnnotableMeta(AbstractMeta):
diff --git a/packages/bigframes/third_party/bigframes_vendored/ibis/common/typing.py b/packages/bigframes/third_party/bigframes_vendored/ibis/common/typing.py
index c0c8ff3928c7..47590532cf6c 100644
--- a/packages/bigframes/third_party/bigframes_vendored/ibis/common/typing.py
+++ b/packages/bigframes/third_party/bigframes_vendored/ibis/common/typing.py
@@ -7,26 +7,23 @@
 import sys
 from abc import abstractmethod
 from itertools import zip_longest
-from typing import TYPE_CHECKING, Any, Optional, TypeVar, Union, get_args, get_origin
+from typing import TYPE_CHECKING, Any, Optional, TypeVar, get_args, get_origin
 from typing import get_type_hints as _get_type_hints
 
 from bigframes_vendored.ibis.common.bases import Abstract
 from bigframes_vendored.ibis.common.caching import memoize
 
 if TYPE_CHECKING:
-    from typing_extensions import Self
-
-if sys.version_info >= (3, 10):
-    from types import UnionType
-    from typing import TypeAlias
+    if sys.version_info >= (3, 11):
+        from typing import Self
+    else:
+        from typing_extensions import Self
 
-    # Keep this alias in sync with unittest.case._ClassInfo
-    _ClassInfo: TypeAlias = type | UnionType | tuple["_ClassInfo", ...]
-else:
-    from typing_extensions import TypeAlias
+from types import UnionType
+from typing import TypeAlias
 
-    UnionType = object()
-    _ClassInfo: TypeAlias = Union[type, tuple["_ClassInfo", ...]]
+# Keep this alias in sync with unittest.case._ClassInfo
+_ClassInfo: TypeAlias = type | UnionType | tuple["_ClassInfo", ...]
 
 
 T = TypeVar("T")
diff --git a/packages/bigframes/third_party/bigframes_vendored/ibis/expr/builders.py b/packages/bigframes/third_party/bigframes_vendored/ibis/expr/builders.py
index c7b6e538ff54..850c56d8437b 100644
--- a/packages/bigframes/third_party/bigframes_vendored/ibis/expr/builders.py
+++ b/packages/bigframes/third_party/bigframes_vendored/ibis/expr/builders.py
@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import math
+import sys
 from typing import TYPE_CHECKING, Any, Literal, Optional, Union
 
 import bigframes_vendored.ibis
@@ -19,7 +20,10 @@
 from bigframes_vendored.ibis.common.typing import VarTuple  # noqa: TCH001
 
 if TYPE_CHECKING:
-    from typing_extensions import Self
+    if sys.version_info >= (3, 11):
+        from typing import Self
+    else:
+        from typing_extensions import Self
 
 
 class Builder(Concrete):
diff --git a/packages/bigframes/third_party/bigframes_vendored/ibis/expr/datatypes/core.py b/packages/bigframes/third_party/bigframes_vendored/ibis/expr/datatypes/core.py
index 75bff716626c..c40017e758bc 100644
--- a/packages/bigframes/third_party/bigframes_vendored/ibis/expr/datatypes/core.py
+++ b/packages/bigframes/third_party/bigframes_vendored/ibis/expr/datatypes/core.py
@@ -5,6 +5,7 @@
 import datetime as pydatetime
 import decimal as pydecimal
 import numbers
+import sys
 import uuid as pyuuid
 from abc import abstractmethod
 from collections.abc import Iterable, Iterator, Mapping, Sequence
@@ -29,7 +30,11 @@
 from bigframes_vendored.ibis.common.patterns import Coercible, CoercionError
 from bigframes_vendored.ibis.common.temporal import IntervalUnit, TimestampUnit
 from public import public
-from typing_extensions import Self
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
 
 
 @lazy_singledispatch
diff --git a/packages/bigframes/third_party/bigframes_vendored/ibis/expr/operations/core.py b/packages/bigframes/third_party/bigframes_vendored/ibis/expr/operations/core.py
index ad0bd095b6c7..2afe11efca64 100644
--- a/packages/bigframes/third_party/bigframes_vendored/ibis/expr/operations/core.py
+++ b/packages/bigframes/third_party/bigframes_vendored/ibis/expr/operations/core.py
@@ -2,8 +2,9 @@
 
 from __future__ import annotations
 
+import sys
 from abc import abstractmethod
-from typing import Generic, Optional
+from typing import Any, Generic, Optional
 
 import bigframes_vendored.ibis.expr.datashape as ds
 import bigframes_vendored.ibis.expr.datatypes as dt
@@ -15,7 +16,12 @@
 from bigframes_vendored.ibis.common.typing import DefaultTypeVars
 from bigframes_vendored.ibis.util import is_iterable
 from public import public
-from typing_extensions import Any, Self, TypeVar
+from typing_extensions import TypeVar
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
 
 
 @public
diff --git a/packages/bigframes/third_party/bigframes_vendored/pandas/pandas/_typing.py b/packages/bigframes/third_party/bigframes_vendored/pandas/pandas/_typing.py
index 3640ba251630..6e45b48c4e15 100644
--- a/packages/bigframes/third_party/bigframes_vendored/pandas/pandas/_typing.py
+++ b/packages/bigframes/third_party/bigframes_vendored/pandas/pandas/_typing.py
@@ -65,10 +65,7 @@
     # Name "npt._ArrayLikeInt_co" is not defined  [name-defined]
     NumpySorter = Optional[npt._ArrayLikeInt_co]  # type: ignore[name-defined]
 
-    if sys.version_info >= (3, 10):
-        from typing import TypeGuard
-    else:
-        from typing_extensions import TypeGuard  # pyright: reportUnusedImport = false
+    from typing import TypeGuard
 
     if sys.version_info >= (3, 11):
         from typing import Self
diff --git a/packages/bigframes/third_party/bigframes_vendored/sqlglot/expressions.py b/packages/bigframes/third_party/bigframes_vendored/sqlglot/expressions.py
index e8e4cc8e10d6..0a868c7c5061 100644
--- a/packages/bigframes/third_party/bigframes_vendored/sqlglot/expressions.py
+++ b/packages/bigframes/third_party/bigframes_vendored/sqlglot/expressions.py
@@ -43,7 +43,11 @@
 if t.TYPE_CHECKING:
     from bigframes_vendored.sqlglot._typing import E, Lit
     from bigframes_vendored.sqlglot.dialects.dialect import DialectType
-    from typing_extensions import Self
+
+    if sys.version_info >= (3, 11):
+        from typing import Self
+    else:
+        from typing_extensions import Self
 
     Q = t.TypeVar("Q", bound="Query")
     S = t.TypeVar("S", bound="SetOperation")
diff --git a/packages/gapic-generator/gapic/configurable_snippetgen/snippet_config_language_pb2.pyi b/packages/gapic-generator/gapic/configurable_snippetgen/snippet_config_language_pb2.pyi
index fb61af2905cf..92802d63901e 100644
--- a/packages/gapic-generator/gapic/configurable_snippetgen/snippet_config_language_pb2.pyi
+++ b/packages/gapic-generator/gapic/configurable_snippetgen/snippet_config_language_pb2.pyi
@@ -24,10 +24,7 @@ import google.protobuf.message
 import sys
 import typing
 
-if sys.version_info >= (3, 10):
-    import typing as typing_extensions
-else:
-    import typing_extensions
+import typing as typing_extensions
 
 DESCRIPTOR: google.protobuf.descriptor.FileDescriptor
 
diff --git a/packages/google-api-core/google/api_core/retry/retry_streaming.py b/packages/google-api-core/google/api_core/retry/retry_streaming.py
index e4474c8afdcf..17cb27c16929 100644
--- a/packages/google-api-core/google/api_core/retry/retry_streaming.py
+++ b/packages/google-api-core/google/api_core/retry/retry_streaming.py
@@ -29,7 +29,6 @@
     TYPE_CHECKING,
 )
 
-import sys
 import time
 import functools
 
@@ -40,10 +39,7 @@
 from google.api_core.retry import RetryFailureReason
 
 if TYPE_CHECKING:
-    if sys.version_info >= (3, 10):
-        from typing import ParamSpec
-    else:
-        from typing_extensions import ParamSpec
+    from typing import ParamSpec
 
     _P = ParamSpec("_P")  # target function call parameters
     _Y = TypeVar("_Y")  # yielded values
diff --git a/packages/google-api-core/google/api_core/retry/retry_streaming_async.py b/packages/google-api-core/google/api_core/retry/retry_streaming_async.py
index 5e5fa2402478..250738116031 100644
--- a/packages/google-api-core/google/api_core/retry/retry_streaming_async.py
+++ b/packages/google-api-core/google/api_core/retry/retry_streaming_async.py
@@ -43,10 +43,7 @@
 
 
 if TYPE_CHECKING:
-    if sys.version_info >= (3, 10):
-        from typing import ParamSpec
-    else:
-        from typing_extensions import ParamSpec
+    from typing import ParamSpec
 
     _P = ParamSpec("_P")  # target function call parameters
     _Y = TypeVar("_Y")  # yielded values
diff --git a/packages/google-api-core/google/api_core/retry/retry_unary.py b/packages/google-api-core/google/api_core/retry/retry_unary.py
index 6d36bc7d1a45..13db5dafd63d 100644
--- a/packages/google-api-core/google/api_core/retry/retry_unary.py
+++ b/packages/google-api-core/google/api_core/retry/retry_unary.py
@@ -57,7 +57,6 @@ def check_if_exists():
 from __future__ import annotations
 
 import functools
-import sys
 import time
 import inspect
 import warnings
@@ -71,10 +70,7 @@ def check_if_exists():
 
 
 if TYPE_CHECKING:
-    if sys.version_info >= (3, 10):
-        from typing import ParamSpec
-    else:
-        from typing_extensions import ParamSpec
+    from typing import ParamSpec
 
     _P = ParamSpec("_P")  # target function call parameters
     _R = TypeVar("_R")  # target function returned value
diff --git a/packages/google-api-core/google/api_core/retry/retry_unary_async.py b/packages/google-api-core/google/api_core/retry/retry_unary_async.py
index 1f72476aff13..3b5133d8ad3f 100644
--- a/packages/google-api-core/google/api_core/retry/retry_unary_async.py
+++ b/packages/google-api-core/google/api_core/retry/retry_unary_async.py
@@ -76,12 +76,7 @@ async def check_if_exists():
 from google.api_core.retry.retry_base import if_transient_error  # noqa
 
 if TYPE_CHECKING:
-    import sys
-
-    if sys.version_info >= (3, 10):
-        from typing import ParamSpec
-    else:
-        from typing_extensions import ParamSpec
+    from typing import ParamSpec
 
     _P = ParamSpec("_P")  # target function call parameters
     _R = TypeVar("_R")  # target function returned value
diff --git a/packages/google-cloud-bigtable/google/cloud/bigtable/data/_cross_sync/cross_sync.py b/packages/google-cloud-bigtable/google/cloud/bigtable/data/_cross_sync/cross_sync.py
index ae9aeda83560..ee302274c30f 100644
--- a/packages/google-cloud-bigtable/google/cloud/bigtable/data/_cross_sync/cross_sync.py
+++ b/packages/google-cloud-bigtable/google/cloud/bigtable/data/_cross_sync/cross_sync.py
@@ -69,7 +69,7 @@ async def async_func(self, arg: int) -> int:
 from ._mapping_meta import MappingMeta
 
 if TYPE_CHECKING:
-    from typing_extensions import TypeAlias
+    from typing import TypeAlias
 
 T = TypeVar("T")
 
diff --git a/packages/google-cloud-spanner/google/cloud/aio/_cross_sync/cross_sync.py b/packages/google-cloud-spanner/google/cloud/aio/_cross_sync/cross_sync.py
index 28305e2b6b16..630838190793 100644
--- a/packages/google-cloud-spanner/google/cloud/aio/_cross_sync/cross_sync.py
+++ b/packages/google-cloud-spanner/google/cloud/aio/_cross_sync/cross_sync.py
@@ -64,7 +64,7 @@ async def async_func(self, arg: int) -> int:
 from ._mapping_meta import MappingMeta
 
 if TYPE_CHECKING:
-    from typing_extensions import TypeAlias
+    from typing import TypeAlias
 
 T = TypeVar("T")