Update agent.py

change default LLM

agent.py

@@ -163,7 +163,8 @@ tools = [
 ]
 
 # Build graph function
-def build_graph(provider: str = "huggingface"):
+#def build_graph(provider: str = "huggingface"):
+def build_graph(provider: str = "google"):
     """Build the graph"""
     # Load environment variables from .env file
     if provider == "google":