diff --git a/src/AsteriskAPIManager/api_manager.py b/src/AsteriskAPIManager/api_manager.py
index 53b548b..ce71c2c 100644
--- a/src/AsteriskAPIManager/api_manager.py
+++ b/src/AsteriskAPIManager/api_manager.py
@@ -2,6 +2,8 @@ import uuid
 from enum import Enum
 from datetime import datetime
 
+from typing import List, Dict, Any, Optional
+
 import aiohttp
 
 from .data_models import *