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_cities_in_a_country", "description": "Fetches a list of cities in a specified country filtered by population range, with options for pagination.", "parameters": {"country_iso2": {"description": "The ISO 3166-1 alpha-2 code of the country.", "type": "str", "default": ""}, "page_size": {"description": "The number of cities to return per page. Default is 20.", "type": "int, optional", "default": 20}, "population_min": {"description": "The minimum population of the cities to include. Default is 0.", "type": "int, optional", "default": 0}, "next_token": {"description": "Token for pagination to fetch the next set of cities. Default is None.", "type": "str, optional", "default": ""}, "population_max": {"description": "The maximum population of the cities to include. Default is 100,000,000.", "type": "int, optional", "default": 100000000}}}, {"name": "retreive_collections", "description": "Retrieves information about collections, including real-time statistics such as floor price.", "parameters": {"filters": {"description": "A JSON string representing the filters to apply when retrieving collections. Default is '{\"sort\":\"VOLUME_ONE_DAY\",\"order\":\"DESC\"}'.", "type": "str", "default": "{\"sort\":\"VOLUME_ONE_DAY\",\"order\":\"DESC\"}"}}}]
I need to know the cities in Japan with a population less than 10,000, and also the NFT collections with the highest floor price. Can you help with that?
user
assistant
[{"name": "get_cities_in_a_country", "arguments": {"country_iso2": "JP", "population_min": 0, "population_max": 10000}}, {"name": "retreive_collections", "arguments": {"filters": "{\"sort\":\"FLOOR_PRICE\",\"order\":\"DESC\"}"}}]