Add some type hints

Author: WhyNotHugo

vdirsyncer/sync/__init__.py

@@ -296,7 +296,7 @@ async def run(self, a, b, conflict_resolution, partial_sync):
                 )
 
 
-def _get_actions(a_info, b_info):
+def _get_actions(a_info: _StorageInfo, b_info: _StorageInfo):
     for ident in uniq(
         itertools.chain(
             a_info.status.parent.iter_new(), a_info.status.parent.iter_old()

vdirsyncer/sync/status.py

@@ -328,7 +328,7 @@ def get_by_href_b(self, *a, **kw):
 
 
 class SubStatus:
-    def __init__(self, parent, side):
+    def __init__(self, parent: SqliteStatus, side: str):
         self.parent = parent
         assert side in "ab"