diff --git a/aiserver.py b/aiserver.py
index 22f0c421..46c89450 100644
--- a/aiserver.py
+++ b/aiserver.py
@@ -40,6 +40,7 @@ import inspect
 import warnings
 import multiprocessing
 from collections.abc import Iterable
+from collections import OrderedDict
 from typing import Any, Callable, TypeVar, Tuple, Union, Dict, Set, List, Optional, Type
 
 import requests