Fix the return answer

agent.py

@@ -10,6 +10,7 @@ from excel_file_reader import excel_file_reader
 from image_analyzer import analyze_image
 from audio_analyzer import analyze_audio
 from video_analyzer import analyze_video
+from generate_final_answer import generate_final_answer
 import os
 
 async def main(query: str, file_url: str | None) -> str: 
@@ -38,7 +39,7 @@ async def main(query: str, file_url: str | None) -> str:
         llm=google_genai_llm,
         system_prompt="""
     You are a general AI assistant. I will ask you a question. 
-    Report your thoughts, and finish your answer with the following template: FINAL ANSWER: [YOUR FINAL ANSWER]. 
+    Do not report your thoughts, and finish your answer with the following template: [YOUR FINAL ANSWER]. 
     YOUR FINAL ANSWER should be a number OR as few words as possible OR a comma separated list of numbers and/or strings. 
     If you are asked for a number, don't use comma to write your number neither use units such as $ or percent sign unless specified otherwise. 
     If you are asked for a string, don't use articles, neither abbreviations (e.g. for cities), and write the digits in plain text unless specified otherwise.