Add a few types to make mypy happier

birdvisu/maps_new/__init__.py

@@ -144,7 +144,7 @@ class AnnotatedTopology:
 # TODO: maybe class to handle sets of annotators?
 def annotate_topology(topology,
 					annotators: Sequence[Callable[[AnnotatedTopology], AnnotatedTopology]],
-					initial_annotation: AnnotatedTopology = None,
+					initial_annotation: AnnotatedTopology | None = None,
 					) -> AnnotatedTopology:
 	"""Runs all the annotators and assigns all the tags.
 

birdvisu/maps_new/providers.py

@@ -16,7 +16,7 @@ class OspfDataTopologyProvider(TopologyProvider):
 		# feel trustworthy (I don't really understand them, but I think they
 		# depend on designated routers and interface numbers, changes of which
 		# should not cause us to think that is a different network)
-		self.network_renames = {}
+		self.network_renames : dict[str,str] = {}
 		# We only care for areas:
 		# TODO: Should we support global visualisation configuration?
 		for directive, details in parsed:

birdvisu/ospfsock.py

@@ -46,7 +46,7 @@ class BirdSocketConnection:
 		self.socket.send(binreq)
 		return self._parse_response()
 
-	def _parse_response(self):
+	def _parse_response(self) -> BirdResponse:
 		# We even read from the socket here in order to have the whole protocol
 		# described at one place. Therefore other parts of the code do not need
 		# to know anything about the protocol (maybe apart from the meaning of