fixed type errors when pylance type checking mode is strict.

mdrsclient/commands/file_metadata.py

@@ -1,6 +1,7 @@
 import json
 import os
-from argparse import Namespace, _SubParsersAction
+from argparse import Namespace
+from typing import Any
 
 from mdrsclient.api import FileApi
 from mdrsclient.commands.base import BaseCommand
@@ -9,21 +10,27 @@ from mdrsclient.exceptions import IllegalArgumentException
 
 class FileMetadataCommand(BaseCommand):
     @classmethod
-    def register(cls, parsers: _SubParsersAction) -> None:
-        command = cls()
+    def register(cls, parsers: Any) -> None:
         file_metadata_parser = parsers.add_parser("file-metadata", help="get the file metadata")
         file_metadata_parser.add_argument("-p", "--password", help="password to use when open locked folder")
         file_metadata_parser.add_argument("remote_path", help="remote file path (remote:/lab/path/file)")
-        file_metadata_parser.set_defaults(func=command.file_metadata)
+        file_metadata_parser.set_defaults(func=cls.func)
 
-    def file_metadata(self, args: Namespace) -> None:
-        (remote, laboratory_name, r_path) = self._parse_remote_host_with_path(args.remote_path)
+    @classmethod
+    def func(cls, args: Namespace) -> None:
+        remote_path = str(args.remote_path)
+        password = str(args.password) if args.password else None
+        cls.file_metadata(remote_path, password)
+
+    @classmethod
+    def file_metadata(cls, remote_path: str, password: str | None) -> None:
+        (remote, laboratory_name, r_path) = cls._parse_remote_host_with_path(remote_path)
         r_path = r_path.rstrip("/")
         r_dirname = os.path.dirname(r_path)
         r_basename = os.path.basename(r_path)
-        connection = self._create_connection(remote)
-        laboratory = self._find_laboratory(connection, laboratory_name)
-        folder = self._find_folder(connection, laboratory, r_dirname, args.password)
+        connection = cls._create_connection(remote)
+        laboratory = cls._find_laboratory(connection, laboratory_name)
+        folder = cls._find_folder(connection, laboratory, r_dirname, password)
         file = folder.find_file(r_basename)
         if file is None:
             raise IllegalArgumentException(f"File `{r_basename}` not found.")