runtime error

Exit code: 1. Reason: Traceback (most recent call last): File "/home/user/app/app.py", line 13, in <module> def my_cutom_tool(city_name:str, api_key: str)-> str: #it's import to specify the return type File "/usr/local/lib/python3.10/site-packages/smolagents/tools.py", line 848, in tool tool_json_schema = get_json_schema(tool_function)["function"] File "/usr/local/lib/python3.10/site-packages/smolagents/_function_type_hints_utils.py", line 211, in get_json_schema raise DocstringParsingException( smolagents._function_type_hints_utils.DocstringParsingException: Cannot generate JSON schema for my_cutom_tool because the docstring has no description for the argument 'api_key'

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