zephyr: Add missing return type annotation.

PIG208 · timabbott · commit 63f46f4bbb7b · 2023-05-29T10:53:22.000-07:00
Signed-off-by: Zixuan James Li &lt;p359101898@gmail.com&gt;
diff --git a/zulip/integrations/zephyr/zephyr_mirror.py b/zulip/integrations/zephyr/zephyr_mirror.py
@@ -43,7 +43,7 @@ async def run_shard(shard: str) -> int:
         process = await asyncio.create_subprocess_exec(*args, f"--shard={shard}")
         return await process.wait()
 
-    async def run_shards():
+    async def run_shards() -> None:
         for coro in asyncio.as_completed(map(run_shard, shards)):
             await coro
             print("A mirroring shard died!")
