From 1ade49a13a887d0f0cd76bc85dc0e789624187a6 Mon Sep 17 00:00:00 2001
From: Dan <14043624+delivrance@users.noreply.github.com>
Date: Mon, 26 Aug 2019 22:09:36 +0200
Subject: [PATCH] Fix error on serializing None when int is expected

---
 pyrogram/client/methods/chats/iter_dialogs.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pyrogram/client/methods/chats/iter_dialogs.py b/pyrogram/client/methods/chats/iter_dialogs.py
index 8265a9df..80ce44f5 100644
--- a/pyrogram/client/methods/chats/iter_dialogs.py
+++ b/pyrogram/client/methods/chats/iter_dialogs.py
@@ -29,7 +29,7 @@ class IterDialogs(BaseClient):
     async def iter_dialogs(
         self,
         limit: int = 0,
-        offset_date: int = None
+        offset_date: int = 0
     ) -> Optional[Generator["pyrogram.Dialog", None, None]]:
         """Iterate through a user's dialogs sequentially.