fixed type errors when pylance type checking mode is strict.

mdrsclient/commands/mkdir.py

@@ -1,5 +1,6 @@
 import os
-from argparse import Namespace, _SubParsersAction
+from argparse import Namespace
+from typing import Any
 from unicodedata import normalize
 
 from mdrsclient.api import FolderApi
@@ -9,20 +10,25 @@ from mdrsclient.exceptions import IllegalArgumentException
 
 class MkdirCommand(BaseCommand):
     @classmethod
-    def register(cls, parsers: _SubParsersAction) -> None:
-        command = cls()
+    def register(cls, parsers: Any) -> None:
         mkdir_parser = parsers.add_parser("mkdir", help="create a new folder")
         mkdir_parser.add_argument("remote_path", help="remote folder path (remote:/lab/path/)")
-        mkdir_parser.set_defaults(func=command.mkdir)
+        mkdir_parser.set_defaults(func=cls.func)
 
-    def mkdir(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)
+        cls.mkdir(remote_path)
+
+    @classmethod
+    def mkdir(cls, remote_path: str) -> 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)
-        parent_folder = self._find_folder(connection, laboratory, r_dirname)
+        connection = cls._create_connection(remote)
+        laboratory = cls._find_laboratory(connection, laboratory_name)
+        parent_folder = cls._find_folder(connection, laboratory, r_dirname)
         if parent_folder.find_sub_folder(r_basename) is not None or parent_folder.find_file(r_basename) is not None:
             raise IllegalArgumentException(f"Cannot create folder `{r_path}`: File exists.")
         folder_api = FolderApi(connection)