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-rw-r--r--synapse/util/async_helpers.py5
-rw-r--r--synapse/util/httpresourcetree.py6
-rw-r--r--synapse/util/manhole.py7
3 files changed, 9 insertions, 9 deletions
diff --git a/synapse/util/async_helpers.py b/synapse/util/async_helpers.py
index 96efc5f3e3..561b962e14 100644
--- a/synapse/util/async_helpers.py
+++ b/synapse/util/async_helpers.py
@@ -31,13 +31,13 @@ from typing import (
     Set,
     TypeVar,
     Union,
+    cast,
 )
 
 import attr
 from typing_extensions import ContextManager
 
 from twisted.internet import defer
-from twisted.internet.base import ReactorBase
 from twisted.internet.defer import CancelledError
 from twisted.internet.interfaces import IReactorTime
 from twisted.python import failure
@@ -271,8 +271,7 @@ class Linearizer:
         if not clock:
             from twisted.internet import reactor
 
-            assert isinstance(reactor, ReactorBase)
-            clock = Clock(reactor)
+            clock = Clock(cast(IReactorTime, reactor))
         self._clock = clock
         self.max_count = max_count
 
diff --git a/synapse/util/httpresourcetree.py b/synapse/util/httpresourcetree.py
index b163643ca3..a0606851f7 100644
--- a/synapse/util/httpresourcetree.py
+++ b/synapse/util/httpresourcetree.py
@@ -92,9 +92,9 @@ def _resource_id(resource: Resource, path_seg: bytes) -> str:
     the mapping should looks like _resource_id(A,C) = B.
 
     Args:
-        resource (Resource): The *parent* Resourceb
-        path_seg (str): The name of the child Resource to be attached.
+        resource: The *parent* Resourceb
+        path_seg: The name of the child Resource to be attached.
     Returns:
-        str: A unique string which can be a key to the child Resource.
+        A unique string which can be a key to the child Resource.
     """
     return "%s-%r" % (resource, path_seg)
diff --git a/synapse/util/manhole.py b/synapse/util/manhole.py
index f8b2d7bea9..48b8195ca1 100644
--- a/synapse/util/manhole.py
+++ b/synapse/util/manhole.py
@@ -23,7 +23,7 @@ from twisted.conch.manhole import ColoredManhole, ManholeInterpreter
 from twisted.conch.ssh.keys import Key
 from twisted.cred import checkers, portal
 from twisted.internet import defer
-from twisted.internet.protocol import Factory
+from twisted.internet.protocol import ServerFactory
 
 from synapse.config.server import ManholeConfig
 
@@ -65,7 +65,7 @@ EddTrx3TNpr1D5m/f+6mnXWrc8u9y1+GNx9yz889xMjIBTBI9KqaaOs=
 -----END RSA PRIVATE KEY-----"""
 
 
-def manhole(settings: ManholeConfig, globals: Dict[str, Any]) -> Factory:
+def manhole(settings: ManholeConfig, globals: Dict[str, Any]) -> ServerFactory:
     """Starts a ssh listener with password authentication using
     the given username and password. Clients connecting to the ssh
     listener will find themselves in a colored python shell with
@@ -105,7 +105,8 @@ def manhole(settings: ManholeConfig, globals: Dict[str, Any]) -> Factory:
     factory.privateKeys[b"ssh-rsa"] = priv_key  # type: ignore[assignment]
     factory.publicKeys[b"ssh-rsa"] = pub_key  # type: ignore[assignment]
 
-    return factory
+    # ConchFactory is a Factory, not a ServerFactory, but they are identical.
+    return factory  # type: ignore[return-value]
 
 
 class SynapseManhole(ColoredManhole):