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": "artist_albums", "description": "Fetches all albums of a given Spotify artist using the RapidAPI service.", "parameters": {"artist_id": {"description": "The Spotify ID of the artist whose albums are to be fetched.", "type": "str", "default": "52wBYviD0Fnactl1q7ibdT"}}}, {"name": "iceland_songs", "description": "Fetches the Iceland Songs chart information from the Billboard API for a specific date and range.", "parameters": {"date": {"description": "The date for which the chart information is requested, in 'YYYY-MM-DD' format.", "type": "str", "default": "2022-05-07"}, "range": {"description": "The range of the chart information to fetch.", "type": "str", "default": "1-10"}}}, {"name": "artist_singles", "description": "Fetches the singles of a given artist using the RapidAPI Spotify endpoint.", "parameters": {"is_id": {"description": "The Spotify artist ID for which to fetch singles.", "type": "str", "default": "2w9zwq3AktTeYYMuhMjju8"}}}]
Provide the Iceland songs chart for December 31, 2019, for the current week and the previous week.
user
assistant
[{"name": "iceland_songs", "arguments": {"date": "2019-12-31", "range": "current_week"}}, {"name": "iceland_songs", "arguments": {"date": "2019-12-31", "range": "previous_week"}}]