messages.content: Calculate the circumference of a circle with radius 3
messages.role: user
messages.role: assistant
messages.arguments: {"radius": 3, "units": "cm"}
messages.name: geometry_circumference
messages.type: function
tools: [{"type": "function", "function": {"name": "geometry_circumference", "description": "Calculate the circumference of a circle given the radius.", "parameters": {"type": "dict", "properties": {"radius": {"type": "integer", "description": "The radius of the circle."}, "units": {"type": "string", "description": "Units for the output circumference measurement. Default is 'cm'."}}, "required": ["radius"]}}}]