Close loops

Author: NoahStapp

test/asynchronous/test_async_loop_safety.py

@@ -32,3 +32,5 @@ def test_client_errors_on_different_loop(self):
         ):
             loop2.run_until_complete(client.server_info())
         loop1.run_until_complete(client.close())
+        loop1.close()
+        loop2.close()