missing import OpenAIServerModel

agent.py

@@ -5,6 +5,7 @@ from smolagents import (
     VisitWebpageTool, 
     PythonInterpreterTool,
     InferenceClientModel,
+    OpenAIServerModel,
     # HfApiModel, # import bug from smolagents after adding duckduckgo-search in requirements
     tool
 )