From de29dc3649206ed064aa709ba3933ecf7f3813b9 Mon Sep 17 00:00:00 2001
From: Cole Maclean <hi@colemaclean.dev>
Date: Thu, 2 Nov 2023 11:00:28 -0700
Subject: [PATCH] fix: deque typing

---
 aiosmtplib/protocol.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/aiosmtplib/protocol.py b/aiosmtplib/protocol.py
index 4a3564f5..e7a4bc36 100644
--- a/aiosmtplib/protocol.py
+++ b/aiosmtplib/protocol.py
@@ -5,7 +5,7 @@
 import collections
 import re
 import ssl
-from typing import Optional, cast
+from typing import Deque, Optional, cast
 
 from .errors import (
     SMTPDataError,
@@ -45,7 +45,7 @@ def __init__(self, loop: Optional[asyncio.AbstractEventLoop] = None):
             self._loop = loop
 
         self._paused = False
-        self._drain_waiters = collections.deque()
+        self._drain_waiters: Deque[asyncio.Future[None]] = collections.deque()
         self._connection_lost = False
 
     def pause_writing(self) -> None: