Improve some of the incomplete types in tkinter.filedialog (#14311)

stdlib/tkinter/filedialog.pyi

@@ -1,6 +1,6 @@
-from _typeshed import Incomplete, StrOrBytesPath
-from collections.abc import Iterable
-from tkinter import Button, Entry, Frame, Listbox, Misc, Scrollbar, StringVar, Toplevel, commondialog
+from _typeshed import Incomplete, StrOrBytesPath, StrPath
+from collections.abc import Hashable, Iterable
+from tkinter import Button, Entry, Event, Frame, Listbox, Misc, Scrollbar, StringVar, Toplevel, commondialog
 from typing import IO, ClassVar, Literal
 
 __all__ = [
@@ -19,12 +19,12 @@ __all__ = [
     "askdirectory",
 ]
 
-dialogstates: dict[Incomplete, tuple[Incomplete, Incomplete]]
+dialogstates: dict[Hashable, tuple[str, str]]
 
 class FileDialog:
     title: str
-    master: Incomplete
-    directory: Incomplete | None
+    master: Misc
+    directory: str | None
     top: Toplevel
     botframe: Frame
     selection: Entry
@@ -38,23 +38,23 @@ class FileDialog:
     filter_button: Button
     cancel_button: Button
     def __init__(
-        self, master, title=None
+        self, master: Misc, title: str | None = None
     ) -> None: ...  # title is usually a str or None, but e.g. int doesn't raise en exception either
-    how: Incomplete | None
-    def go(self, dir_or_file=".", pattern: str = "*", default: str = "", key=None): ...
-    def quit(self, how=None) -> None: ...
-    def dirs_double_event(self, event) -> None: ...
-    def dirs_select_event(self, event) -> None: ...
-    def files_double_event(self, event) -> None: ...
-    def files_select_event(self, event) -> None: ...
-    def ok_event(self, event) -> None: ...
+    how: str | None
+    def go(self, dir_or_file: StrPath = ".", pattern: StrPath = "*", default: StrPath = "", key: Hashable | None = None): ...
+    def quit(self, how: str | None = None) -> None: ...
+    def dirs_double_event(self, event: Event) -> None: ...
+    def dirs_select_event(self, event: Event) -> None: ...
+    def files_double_event(self, event: Event) -> None: ...
+    def files_select_event(self, event: Event) -> None: ...
+    def ok_event(self, event: Event) -> None: ...
     def ok_command(self) -> None: ...
-    def filter_command(self, event=None) -> None: ...
-    def get_filter(self): ...
-    def get_selection(self): ...
-    def cancel_command(self, event=None) -> None: ...
-    def set_filter(self, dir, pat) -> None: ...
-    def set_selection(self, file) -> None: ...
+    def filter_command(self, event: Event | None = None) -> None: ...
+    def get_filter(self) -> tuple[str, str]: ...
+    def get_selection(self) -> str: ...
+    def cancel_command(self, event: Event | None = None) -> None: ...
+    def set_filter(self, dir: StrPath, pat: StrPath) -> None: ...
+    def set_selection(self, file: StrPath) -> None: ...
 
 class LoadFileDialog(FileDialog):
     title: str