Fix typing

Author: holtskinner

src/a2a/server/events/event_consumer.py

@@ -17,7 +17,7 @@
 
 
 # This is an alias to the exception for closed queue
-QueueClosed = asyncio.QueueEmpty
+QueueClosed: type[Exception] = asyncio.QueueEmpty
 
 # When using python 3.13 or higher, the closed queue signal is QueueShutdown
 if sys.version_info >= (3, 13):

src/a2a/server/events/event_queue.py

@@ -143,7 +143,7 @@ async def close(self) -> None:
         if sys.version_info >= (3, 13):
             self.queue.shutdown()
             for child in self._children:
-                child.close()
+                await child.close()
         # Otherwise, join the queue
         else:
             tasks = [asyncio.create_task(self.queue.join())]