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": "polygon_area_shoelace", "description": "Calculates the area of a polygon using the shoelace formula.", "parameters": {"vertices": {"description": "A list of polygon vertices represented as tuples (x, y).", "type": "List[Tuple[float, float]]"}}}]
I need to find the area of a pentagon with vertices at (0, 0), (2, 1), (3, 4), (1, 3), and (0, 2). Can you help me with that?
user
assistant
[{"name": "polygon_area_shoelace", "arguments": {"vertices": [[0, 0], [2, 1], [3, 4], [1, 3], [0, 2]]}}]