added prompt template

app.py

@@ -53,7 +53,12 @@ image_generation_tool = load_tool("agents-course/text-to-image", trust_remote_co
 with open("prompts.yaml", 'r') as stream:
     prompt_templates = yaml.safe_load(stream)
 print("TOOLS:", [final_answer, my_custom_tool, get_current_time_in_timezone, image_generation_tool])
-prompt_templates["final_answer"] = "This is the final answer to the user's query: {output}"
+prompt_templates["final_answer"] = {
+    "pre_messages": [
+        {"role": "system", "content": "You are a helpful assistant. Return the final answer clearly."}
+    ],
+    "format": "{output}"
+}
 agent = CodeAgent(
     model=model,
     tools=[final_answer,get_current_time_in_timezone,my_custom_tool,image_generation_tool], ## add your tools here (don't remove final answer)