fixed type errors when pylance type checking mode is strict.

mdrsclient/commands/labs.py

@@ -1,4 +1,5 @@
-from argparse import Namespace, _SubParsersAction
+from argparse import Namespace
+from typing import Any
 
 from mdrsclient.api import LaboratoryApi
 from mdrsclient.commands.base import BaseCommand
@@ -6,15 +7,20 @@ from mdrsclient.commands.base import BaseCommand
 
 class LabsCommand(BaseCommand):
     @classmethod
-    def register(cls, parsers: _SubParsersAction) -> None:
-        command = cls()
+    def register(cls, parsers: Any) -> None:
         labs_parser = parsers.add_parser("labs", help="list all laboratories")
         labs_parser.add_argument("remote", help="label of remote host")
-        labs_parser.set_defaults(func=command.labs)
+        labs_parser.set_defaults(func=cls.func)
 
-    def labs(self, args: Namespace) -> None:
-        remote = self._parse_remote_host(args.remote)
-        connection = self._create_connection(remote)
+    @classmethod
+    def func(cls, args: Namespace) -> None:
+        remote = str(args.remote)
+        cls.labs(remote)
+
+    @classmethod
+    def labs(cls, remote: str) -> None:
+        remote = cls._parse_remote_host(remote)
+        connection = cls._create_connection(remote)
         laboratory_api = LaboratoryApi(connection)
         laboratories = laboratory_api.list()
         connection.laboratories = laboratories