Update agent.py

agent.py

@@ -10,7 +10,6 @@ API_URL = "https://agents-course-unit4-scoring.hf.space"
 # ------------------------
 # Tool definitions
 # ------------------------
-
 @tool
 def fetch_questions() -> list:
     """
@@ -52,11 +51,11 @@ def submit_answers(
     answers: list
 ) -> dict:
     """
-    Submit the agent's answers and get back the scoring.
+    Submit the agent's answers to GAIA and return the scoring.
 
     :param username: Your HF username for the submission.
     :param agent_code: URL to your Space code (for verification).
-    :param answers: List of dicts with 'task_id' and 'submitted_answer'.
+    :param answers: List of dicts each with 'task_id' and 'submitted_answer'.
     :return: Dict with keys 'score', 'correct_count', 'total_attempted', 'message', etc.
     """
     payload = {
@@ -68,15 +67,16 @@ def submit_answers(
     resp.raise_for_status()
     return resp.json()
 
+
 def create_agent() -> CodeAgent:
     """
     Build and return a configured CodeAgent using OpenAI GPT-3.5 Turbo.
     Expects OPENAI_API_KEY in the environment.
     """
-    model = OpenAIServerModel(model_name="gpt-3.5-turbo")
+    openai_model = OpenAIServerModel(model_name="gpt-3.5-turbo")
     agent = CodeAgent(
         tools=[fetch_questions, fetch_random_question, fetch_file, submit_answers],
-        model=model,
+        model=openai_model,
         prompt_template=(
             "Here is a GAIA question:\n"
             "{question}\n"