messages.content: What's the time difference between San Francisco and Sydney?
messages.role: user
messages.role: assistant
messages.arguments: {"place1": "San Francisco", "place2": "Sydney"}
messages.name: get_time_difference
messages.type: function
tools: [{"type": "function", "function": {"name": "get_time_difference", "description": "Get the time difference between two places.", "parameters": {"type": "dict", "properties": {"place1": {"type": "string", "description": "The first place for time difference."}, "place2": {"type": "string", "description": "The second place for time difference."}}, "required": ["place1", "place2"]}}}]