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": "historical_exchange_rates", "description": "Fetch historical exchange rate data for a specific date using the RapidAPI service.", "parameters": {"date": {"description": "The date for which to retrieve exchange rate data, formatted as 'YYYY-MM-DD'.", "type": "str", "default": ""}}}]
What were the exchange rates of USD to EUR, GBP, and JPY on 2020-01-01?
user
assistant
[{"name": "historical_exchange_rates", "arguments": {"date": "2020-01-01"}}]