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": "billboard_global_200_year_end", "description": "Fetch the YEAR-END Billboard Global 200 chart information for a given year.", "parameters": {"year": {"description": "The year for which to fetch the chart data, in the format 'YYYY'. Defaults to '2022'.", "type": "str", "default": "2022"}}}, {"name": "get_podcast_metadata", "description": "Fetch full details of a podcast using its Show ID from Spotify's metadata API.", "parameters": {"showid": {"description": "The unique identifier for the podcast show.", "type": "str", "default": "4oTBzqC3DHbaKNFq2YXpQw"}}}, {"name": "top_artists_male", "description": "Fetches the YEAR-END Top Artists - Male chart information from the Billboard API.", "parameters": {"year": {"description": "The year for which to retrieve the chart information in 'YYYY' format. Defaults to '2022' if not provided.", "type": "str", "default": "2022"}}}]
Could you provide the year-end Billboard Global 200 chart data for 2018?
user
assistant
[{"name": "billboard_global_200_year_end", "arguments": {"year": "2018"}}]