Add most of the missing type hints to `synapse.federation`. (#11483)

This skips a few methods which are difficult to type.

1 files changed, 6 insertions, 4 deletions

diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py
index cce85526e7..8e37e76206 100644
--- a/synapse/federation/federation_server.py
+++ b/synapse/federation/federation_server.py
@@ -1,6 +1,6 @@
 # Copyright 2015, 2016 OpenMarket Ltd
 # Copyright 2018 New Vector Ltd
-# Copyright 2019 Matrix.org Federation C.I.C
+# Copyright 2019-2021 Matrix.org Federation C.I.C
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -450,7 +450,7 @@ class FederationServer(FederationBase):
         # require callouts to other servers to fetch missing events), but
         # impose a limit to avoid going too crazy with ram/cpu.
 
-        async def process_pdus_for_room(room_id: str):
+        async def process_pdus_for_room(room_id: str) -> None:
             with nested_logging_context(room_id):
                 logger.debug("Processing PDUs for %s", room_id)
 
@@ -547,7 +547,7 @@ class FederationServer(FederationBase):
 
     async def on_state_ids_request(
         self, origin: str, room_id: str, event_id: str
-    ) -> Tuple[int, Dict[str, Any]]:
+    ) -> Tuple[int, JsonDict]:
         if not event_id:
             raise NotImplementedError("Specify an event")
 
@@ -567,7 +567,9 @@ class FederationServer(FederationBase):
 
         return 200, resp
 
-    async def _on_state_ids_request_compute(self, room_id, event_id):
+    async def _on_state_ids_request_compute(
+        self, room_id: str, event_id: str
+    ) -> JsonDict:
         state_ids = await self.handler.get_state_ids_for_pdu(room_id, event_id)
         auth_chain_ids = await self.store.get_auth_chain_ids(room_id, state_ids)
         return {"pdu_ids": state_ids, "auth_chain_ids": auth_chain_ids}