From 86ada9e41ab299fb627ba1f14927590f83aaa0da Mon Sep 17 00:00:00 2001
From: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
Date: Thu, 27 Oct 2022 02:42:11 -0700
Subject: [PATCH] io: use ReadableBuffer for BytesIO (#8995)

---
 stdlib/io.pyi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stdlib/io.pyi b/stdlib/io.pyi
index 3e9a6cd68..2d3aadc48 100644
--- a/stdlib/io.pyi
+++ b/stdlib/io.pyi
@@ -103,7 +103,7 @@ class FileIO(RawIOBase, BinaryIO):
     def __enter__(self: Self) -> Self: ...
 
 class BytesIO(BufferedIOBase, BinaryIO):
-    def __init__(self, initial_bytes: bytes = ...) -> None: ...
+    def __init__(self, initial_bytes: ReadableBuffer = ...) -> None: ...
     # BytesIO does not contain a "name" field. This workaround is necessary
     # to allow BytesIO sub-classes to add this field, as it is defined
     # as a read-only property on IO[].