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": "stock_get_stat", "description": "Retrieves stock statistics for a given ticker ID from the Webull API.", "parameters": {"tickerid": {"description": "The value of the ticker ID to fetch statistics for. This ID can be obtained from other endpoints such as /stock/search or /market/get-common-ranking.", "type": "int", "default": "913255598"}}}, {"name": "time_series_endpoint", "description": "Retrieve historical exchange rates for specified date range and currency conversions.", "parameters": {"start_date": {"description": "The start date for the time series data in `YYYY-MM-DD` format.", "type": "str", "default": "2019-01-01"}, "end_date": {"description": "The end date for the time series data in `YYYY-MM-DD` format.", "type": "str", "default": "2019-01-02"}, "is_from": {"description": "Three-letter currency code of the base currency to convert from. Defaults to 'USD'.", "type": "str, optional", "default": "USD"}, "to": {"description": "A comma-separated list of target currency codes to convert to. Defaults to 'EUR,GBP'.", "type": "str, optional", "default": "EUR,GBP"}}}, {"name": "latest_rates", "description": "Fetches the latest exchange rate data, updated every 60 minutes.", "parameters": {"base": {"description": "The base currency for which to get the exchange rates. Defaults to 'eur'.", "type": "str", "default": "eur"}}}]
I need historical exchange rates from January 1, 2023, to March 31, 2023, converting from USD to EUR and GBP.
user
assistant
[{"name": "time_series_endpoint", "arguments": {"start_date": "2023-01-01", "end_date": "2023-03-31", "is_from": "USD", "to": "EUR,GBP"}}]