feat: add shutdown support to async client

pulsar/asyncio.py

@@ -775,6 +775,16 @@ async def subscribe(self, topic: Union[str, List[str]],
 
         schema.attach_client(self._client)
         return Consumer(await future, schema)
+
+    def shutdown(self) -> None:
+        """
+        Shutdown the client and all the associated producers and consumers
+
+        Raises
+        ------
+        PulsarException
+        """
+        self._client.shutdown()
 
     async def close(self) -> None:
         """

tests/asyncio_test.py

@@ -164,6 +164,18 @@ async def test_producer_is_connected(self):
         await producer.close()
         self.assertFalse(producer.is_connected())
 
+    async def test_shutdown_client(self):
+        producer = await self._client.create_producer("persistent://public/default/partitioned_topic_name_test")
+        await producer.send(b"hello")
+        self._client.shutdown()
+
+        try:
+            await producer.send(b"hello")
+            self.assertTrue(False)
+        except PulsarException:
+            # Expected
+            pass
+
     async def _prepare_messages(self, producer: Producer) -> List[pulsar.MessageId]:
         msg_ids = []
         for i in range(5):