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": "africa", "description": "Fetch a list of African cities sorted by the given criteria from the Nomad List API.", "parameters": {"sort": {"description": "Sort order, either 'asc' for ascending or 'desc' for descending. Defaults to 'desc'.", "type": "str", "default": "desc"}, "sort_by": {"description": "The attribute to sort by, such as 'overall_score', 'internet_speed', 'temperatureC', 'cost_for_family_in_usd', etc. Defaults to 'overall_score'.", "type": "str", "default": "overall_score"}, "page": {"description": "Page number for pagination. Defaults to '1'.", "type": "str", "default": "1"}, "size": {"description": "Number of results per page. Defaults to '20'.", "type": "str", "default": "20"}}}]
Display the 50 cities in Africa sorted by overall score in ascending order.
user
assistant
[{"name": "africa", "arguments": {"sort": "asc", "sort_by": "overall_score", "size": "50"}}]