(easy) Fix pyre error #56/#35/#11

Summary: Fix pyre error #56/#35/#11 in Open/R python codebase.

Reviewed By: saifhhasan

Differential Revision: D28271698

fbshipit-source-id: b21e5743f15bbdbaa030e7e8c1beac7ecea6e369

openr/py/openr/cli/clis/kvstore.py

@@ -293,14 +293,14 @@ def unset(cli_opts, node):  # noqa: B902
 
 
 class SummaryCli(object):
+    default_area_list: List[str] = []
+
     @click.command()
-    # pyre-fixme[56]: Pyre was not able to infer the type of argument `[]` to
-    #  decorator factory `click.option`.
     @click.option(
         "--area",
         "-a",
         multiple=True,
-        default=[],
+        default=default_area_list,
         help="Dump summaries for the given list of areas. Default will dump "
         "summaries for all areas. Multiple areas can be provided by repeatedly using "
         "either of the two valid flags: -a or --areas",

openr/py/openr/cli/commands/kvstore.py

@@ -1465,9 +1465,8 @@ def _get_global_summary(
     ) -> openr_types.KvStoreAreaSummary:
         global_summary = openr_types.KvStoreAreaSummary()
         global_summary.area = "ALL" + self._get_area_str()
-        # pyre-fixme[35]: Target cannot be annotated.
-        # pyre-fixme[11]: Annotation `peerSpec` is not defined as a type.
-        global_summary.peersMap: Dict[str, openr_types.peerSpec] = {}
+        # peersMap's type: Dict[str, openr_types.PeerSpec]
+        global_summary.peersMap = {}
         # create a map of unique total peers for this node
         for s in summaries:
             for peer, peerSpec in s.peersMap.items():