replace basic agent with code agent

app.py

@@ -3,6 +3,7 @@ import gradio as gr
 import requests
 import inspect
 import pandas as pd
+from smolagents import CodeAgent, LiteLLMModel
 
 # (Keep Constants as is)
 # --- Constants ---
@@ -12,12 +13,17 @@ DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 # ----- THIS IS WERE YOU CAN BUILD WHAT YOU WANT ------
 class BasicAgent:
     def __init__(self):
+        model = LiteLLMModel(
+            model_id="gemini/gemini-2.5-flash", 
+            api_key=os.getenv("GOOGLE_API_KEY")]
+        )
+        self.agent = CodeAgent(model=model, add_base_tools=True)
         print("BasicAgent initialized.")
     def __call__(self, question: str) -> str:
         print(f"Agent received question (first 50 chars): {question[:50]}...")
-        fixed_answer = "This is a default answer."
-        print(f"Agent returning fixed answer: {fixed_answer}")
-        return fixed_answer
+        answer = self.agent.run(question)
+        print(f"Agent returning answer: {answer}")
+        return answer
 
 def run_and_submit_all( profile: gr.OAuthProfile | None):
     """