fixed type errors when pylance type checking mode is strict.

mdrsclient/commands/whoami.py

@@ -1,5 +1,5 @@
-from argparse import Namespace, _SubParsersAction
-from typing import Final
+from argparse import Namespace
+from typing import Any, Final
 
 from mdrsclient.commands.base import BaseCommand
 from mdrsclient.config import ConfigFile
@@ -11,19 +11,24 @@ class WhoamiCommand(BaseCommand):
     ANONYMOUS_USERNAME: Final[str] = "(Anonymous)"
 
     @classmethod
-    def register(cls, parsers: _SubParsersAction) -> None:
-        command = cls()
+    def register(cls, parsers: Any) -> None:
         whoami_parser = parsers.add_parser("whoami", help="show current user name")
         whoami_parser.add_argument("remote", help="label of remote host")
-        whoami_parser.set_defaults(func=command.whoami)
+        whoami_parser.set_defaults(func=cls.func)
 
-    def whoami(self, args: Namespace) -> None:
-        remote = self._parse_remote_host(args.remote)
+    @classmethod
+    def func(cls, args: Namespace) -> None:
+        remote = str(args.remote)
+        cls.whoami(remote)
+
+    @classmethod
+    def whoami(cls, remote: str) -> None:
+        remote = cls._parse_remote_host(remote)
         config = ConfigFile(remote)
         if config.url is None:
             raise MissingConfigurationException(f"Remote host `{remote}` is not found.")
         connection = MDRSConnection(config.remote, config.url)
         if connection.token is not None and connection.token.is_expired:
             connection.logout()
-        username = connection.user.username if connection.user is not None else self.ANONYMOUS_USERNAME
+        username = connection.user.username if connection.user is not None else cls.ANONYMOUS_USERNAME
         print(username)