From 61c61d2db41e4a3d335d60e68737b04b37cd002f Mon Sep 17 00:00:00 2001
From: Jon Dufresne <jon.dufresne@gmail.com>
Date: Sun, 3 Jan 2021 16:07:12 -0800
Subject: [PATCH] Precise return type of HelpFormatter.format_option_strings()
 (#4896)

Always returns a str:
https://github.com/python/cpython/blob/v3.9.1/Lib/optparse.py#L366
---
 stdlib/2and3/optparse.pyi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stdlib/2and3/optparse.pyi b/stdlib/2and3/optparse.pyi
index 76f7be471..8fb468844 100644
--- a/stdlib/2and3/optparse.pyi
+++ b/stdlib/2and3/optparse.pyi
@@ -60,7 +60,7 @@ class HelpFormatter:
     def format_epilog(self, epilog: _Text) -> _Text: ...
     def format_heading(self, heading: Any) -> _Text: ...
     def format_option(self, option: OptionParser) -> _Text: ...
-    def format_option_strings(self, option: OptionParser) -> Any: ...
+    def format_option_strings(self, option: OptionParser) -> _Text: ...
     def format_usage(self, usage: Any) -> _Text: ...
     def indent(self) -> None: ...
     def set_long_opt_delimiter(self, delim: _Text) -> None: ...