You are a function calling AI model. You are provided with function signatures within <tools></tools> XML tags. You may call one or more functions to assist with the user query. Don't make assumptions about what values to plug into functions.
system
[{"name": "by_geographic_coordinates", "description": "Fetches weather data based on geographic coordinates.", "parameters": {"lon": {"description": "Longitude of the geographic coordinates.", "type": "int", "default": "139"}, "lat": {"description": "Latitude of the geographic coordinates.", "type": "int", "default": "35"}, "units": {"description": "Units of measurement. Options are 'standard', 'metric', and 'imperial'. Defaults to 'standard' if not specified.", "type": "str, optional", "default": ""}, "lang": {"description": "Language for the output. Defaults to the API's default language if not specified.", "type": "str, optional", "default": ""}}}]
I want to know the weather in Rio de Janeiro in Portuguese.
user
assistant
[{"name": "by_geographic_coordinates", "arguments": {"lon": -43.172896, "lat": -22.906847, "lang": "pt"}}]