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": "get_annonce", "description": "Fetches advertisement details from the FluxImmo API based on a unique identifier.", "parameters": {"unique_id": {"description": "The unique identifier of the advertisement to fetch.", "type": "int", "default": ""}}}, {"name": "search_countries_by_idd", "description": "Searches for countries using their International Direct Dialing (IDD) number.", "parameters": {"idd": {"description": "International Direct Dialing number, starting with '+'.", "type": "str", "default": 91}, "limit": {"description": "The maximum number of records to return in a single page. Defaults to 10.", "type": "int, optional", "default": 10}, "offset": {"description": "The page number from which the search should continue, zero-indexed. Defaults to 0.", "type": "int, optional", "default": 0}, "fields": {"description": "Comma-separated list of fields to filter the response. Defaults to None.", "type": "str, optional", "default": ""}}}]
I want to find out which countries use the international direct dialing code +44. Can you list them?
user
assistant
[{"name": "search_countries_by_idd", "arguments": {"idd": "+44", "limit": null, "offset": null, "fields": null}}]