diff --git a/litellm/__init__.py b/litellm/__init__.py
index c5c2cd68d..052e542d6 100644
--- a/litellm/__init__.py
+++ b/litellm/__init__.py
@@ -1,5 +1,5 @@
 import threading
-from typing import Callable, List, Optional
+from typing import Callable, List, Optional, Dict
 
 input_callback: List[str] = []
 success_callback: List[str] = []
@@ -23,7 +23,7 @@ vertex_location: Optional[str] = None
 togetherai_api_key: Optional[str] = None
 caching = False
 caching_with_models = False  # if you want the caching key to be model + prompt
-model_alias_map = {}
+model_alias_map: Dict[str, str] = {}
 debugger = False
 model_cost = {
     "babbage-002": {