From 23c2d902380419ec8804cd05b3f9e8c47279e5d0 Mon Sep 17 00:00:00 2001
From: Stegallo <stegallo@gmail.com>
Date: Thu, 18 Nov 2021 08:29:49 -0800
Subject: [PATCH] add default to external_topic_distribution (#222)

Co-authored-by: Stefano Gallotti <sgallotti@expediagroup.com>
---
 faust/assignor/client_assignment.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/faust/assignor/client_assignment.py b/faust/assignor/client_assignment.py
index 3b1205f23..218ed528f 100644
--- a/faust/assignor/client_assignment.py
+++ b/faust/assignor/client_assignment.py
@@ -149,7 +149,7 @@ class ClientMetadata(
     assignment: ClientAssignment
     url: str
     changelog_distribution: HostToPartitionMap
-    external_topic_distribution: HostToPartitionMap
+    external_topic_distribution: HostToPartitionMap = cast(HostToPartitionMap, {})
     topic_groups: Mapping[str, int] = cast(Mapping[str, int], None)
 
     def __post_init__(self) -> None: