style: manual 3.9 fixes

Author: onerandomusername

disnake/ext/mypy_plugin/__init__.py

@@ -1,6 +1,5 @@
 # SPDX-License-Identifier: MIT
 
-import typing as t
 
 from mypy.plugin import Plugin
 

disnake/ext/tasks/__init__.py

@@ -13,10 +13,8 @@
     Any,
     Callable,
     Generic,
-    List,
     Optional,
     Protocol,
-    Type,
     TypeVar,
     Union,
     cast,

tests/helpers.py

@@ -4,7 +4,8 @@
 import functools
 import inspect
 import types
-from typing import TYPE_CHECKING, Callable, ContextManager, Optional, TypeVar
+from collections.abc import AbstractContextManager
+from typing import TYPE_CHECKING, Callable, Optional, TypeVar
 from unittest import mock
 
 if TYPE_CHECKING:
@@ -28,7 +29,7 @@ def reveal_type(*args, **kwargs) -> None:
 CallableT = TypeVar("CallableT", bound=Callable)
 
 
-class freeze_time(ContextManager):
+class freeze_time(AbstractContextManager):
     """Helper class that freezes time at the given datetime by patching `datetime.now`.
     If no datetime is provided, defaults to the current time.
     Can be used as a sync context manager or decorator for sync/async functions.