From 7766b2d92b9d79b62ac9b9b4ef81c0eef7361ec3 Mon Sep 17 00:00:00 2001
From: "David T.H. Kao" <dthkao@gmail.com>
Date: Thu, 30 Apr 2020 00:54:34 -0400
Subject: [PATCH] =?UTF-8?q?Use=20IO[bytes]=20instead=20of=20BytesIO=20for?=
 =?UTF-8?q?=20wave=20input=20signatures=20as=20it=20is=20t=E2=80=A6=20(#39?=
 =?UTF-8?q?52)?=
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* Use IO[bytes] instead of BytesIO for wave input signatures as it is the (slightly) more general type.

* add missing import

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
---
 stdlib/2and3/wave.pyi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/stdlib/2and3/wave.pyi b/stdlib/2and3/wave.pyi
index 52bc9b156..ca76ca5e2 100644
--- a/stdlib/2and3/wave.pyi
+++ b/stdlib/2and3/wave.pyi
@@ -2,10 +2,10 @@
 
 import sys
 from typing import (
-    Any, NamedTuple, NoReturn, Optional, Text, BinaryIO, Union, Tuple
+    Any, NamedTuple, NoReturn, Optional, Text, BinaryIO, Union, Tuple, IO
 )
 
-_File = Union[Text, BinaryIO]
+_File = Union[Text, IO[bytes]]
 
 class Error(Exception): ...