From bff2e6981e946a915b7a468c80949e7d8cc2b413 Mon Sep 17 00:00:00 2001
From: Lonami Exo <totufals@hotmail.com>
Date: Thu, 12 Oct 2017 18:03:10 +0200
Subject: [PATCH] Fix ._pop_request_of_type failing on not-found requests

---
 telethon/network/mtproto_sender.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/telethon/network/mtproto_sender.py b/telethon/network/mtproto_sender.py
index 76ec5317..aba44dc2 100644
--- a/telethon/network/mtproto_sender.py
+++ b/telethon/network/mtproto_sender.py
@@ -244,7 +244,7 @@ class MtProtoSender:
            the given type, or returns None if it's not found/doesn't match.
         """
         message = self._pending_receive.get(msg_id, None)
-        if isinstance(message.request, t):
+        if message and isinstance(message.request, t):
             return self._pending_receive.pop(msg_id).request
 
     def _clear_all_pending(self):