messages.content: What's the area of a circle with a radius of 10?
messages.role: user
messages.role: assistant
messages.arguments: {"radius": 10, "units": "meters"}
messages.name: geometry_area_circle
messages.type: function
tools: [{"type": "function", "function": {"name": "geometry_area_circle", "description": "Calculate the area of a circle given the radius.", "parameters": {"type": "dict", "properties": {"radius": {"type": "integer", "description": "The radius of the circle."}, "units": {"type": "string", "description": "The units in which the radius is measured (defaults to 'meters')."}}, "required": ["radius"]}}}]