Fix-up type hints in tests/server.py. (#15084)

This file was being ignored by mypy, we remove that
and add the missing type hints & deal with any fallout.

1 files changed, 2 insertions, 4 deletions

diff --git a/tests/appservice/test_scheduler.py b/tests/appservice/test_scheduler.py

index febcc1499d..e2a3bad065 100644
--- a/tests/appservice/test_scheduler.py
+++ b/tests/appservice/test_scheduler.py
@@ -11,12 +11,13 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from typing import TYPE_CHECKING, List, Optional, Sequence, Tuple, cast
+from typing import List, Optional, Sequence, Tuple, cast
 from unittest.mock import Mock
 
 from typing_extensions import TypeAlias
 
 from twisted.internet import defer
+from twisted.test.proto_helpers import MemoryReactor
 
 from synapse.appservice import (
     ApplicationService,
@@ -40,9 +41,6 @@ from tests.test_utils import simple_async_mock
 
 from ..utils import MockClock
 
-if TYPE_CHECKING:
-    from twisted.internet.testing import MemoryReactor
-
 
 class ApplicationServiceSchedulerTransactionCtrlTestCase(unittest.TestCase):
     def setUp(self) -> None: