From 99d79696d798a17ba789ed26eb68e540936fbb60 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Oleg=20H=C3=B6fling?= <hoefling@users.noreply.github.com>
Date: Sun, 26 Jan 2020 15:48:44 +0100
Subject: [PATCH] accept optional extras in asyncio.BaseTransport init (#3661)
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Signed-off-by: Oleg Höfling <oleg.hoefling@gmail.com>
---
 stdlib/3/asyncio/transports.pyi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stdlib/3/asyncio/transports.pyi b/stdlib/3/asyncio/transports.pyi
index df80beb4e..d194f833e 100644
--- a/stdlib/3/asyncio/transports.pyi
+++ b/stdlib/3/asyncio/transports.pyi
@@ -4,7 +4,7 @@ from asyncio.protocols import BaseProtocol
 from asyncio.events import AbstractEventLoop
 
 class BaseTransport:
-    def __init__(self, extra: Mapping[Any, Any] = ...) -> None: ...
+    def __init__(self, extra: Optional[Mapping[Any, Any]] = ...) -> None: ...
     def get_extra_info(self, name: Any, default: Any = ...) -> Any: ...
     def is_closing(self) -> bool: ...
     def close(self) -> None: ...