changed function return to str

app.py

@@ -6,10 +6,9 @@ import yaml
 from tools.final_answer import FinalAnswerTool
 from Gradio_UI import GradioUI
 from xml.etree import ElementTree
-from typing import Union, List, Dict, Any
 
-@tool(output_type="json")
-def get_lastest_filing_info(company: str = None, cik: str = None, type: str = "10-K", dateb: str = None, start: str = '0', count: str = '50') -> Union[List[Dict[str, Any]], Dict[str, str]]:
+@tool
+def get_lastest_filing_info(company: str = None, cik: str = None, type: str = "10-K", dateb: str = None, start: str = '0', count: str = '50') -> str:
     """A tool that gets the most recent 10-K filings of a company from the SEC.
     Args:
         company: The name of the company.