From a125cc10fc831465835be2e05086a566f2ee4590 Mon Sep 17 00:00:00 2001
From: Thomas Sondergaard <thomas@sondergaard.cc>
Date: Wed, 1 Jan 2020 00:33:55 +0100
Subject: [PATCH] argparse: ArgumentOptions.metavar can be an array (#41283)

This is essential for useful docs for nargs >= 2.

https://docs.python.org/dev/library/argparse.html#metavar says this
about metavar and nargs:

Different values of nargs may cause the metavar to be used multiple
times. Providing a tuple to metavar specifies a different display for
each of the arguments.
---
 types/argparse/index.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/types/argparse/index.d.ts b/types/argparse/index.d.ts
index 0c0075dc15..f74c20a601 100644
--- a/types/argparse/index.d.ts
+++ b/types/argparse/index.d.ts
@@ -109,7 +109,7 @@ export interface ArgumentOptions {
     choices?: string | string[];
     required?: boolean;
     help?: string;
-    metavar?: string;
+    metavar?: string | string[];
 }
 
 export namespace Const {