Update app.py

app.py

@@ -27,7 +27,11 @@ def my_custom_tool(arg1:str)-> str: #it's import to specify the return type
     # 검색 도구 초기화
     search_tool = DuckDuckGoSearchTool()
     result = search_tool(arg1)
-    return result
+    
+    # 안전하게 문자열로 변환
+    if isinstance(result, (dict, list)):
+        return yaml.safe_dump(result, allow_unicode=True, sort_keys=False)
+    return str(result)
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str:
@@ -66,7 +70,7 @@ with open("prompts.yaml", 'r') as stream:
     
 agent = CodeAgent(
     model=model,
-    tools=[final_answer], ## add your tools here (don't remove final answer)
+    tools=[final_answer, my_custom_tool, get_current_time_in_timezone], ## add your tools here (don't remove final answer)
     max_steps=6,
     verbosity_level=1,
     grammar=None,