add token

app.py

@@ -1,6 +1,9 @@
+import os
 import networkx as nx
 from smolagents import CodeAgent, HfApiModel, tool, GradioUI
 
+HF_TOKEN = os.getenv("HF_TOKEN")
+
 # Define a tool for analyzing the Florentine Families graph
 @tool
 def analyze_florentine_graph(metric: str) -> str:
@@ -30,7 +33,7 @@ def analyze_florentine_graph(metric: str) -> str:
     return analysis
 
 # Initialize the agent with proper configuration
-model = HfApiModel("meta-llama/Llama-3.3-70B-Instruct")
+model = HfApiModel(model="meta-llama/Llama-3.3-70B-Instruct", token=HF_TOKEN)
 agent = CodeAgent(
     tools=[analyze_florentine_graph],
     model=model,