messages.content: Who was the full name of the president of the United States in 1861?
messages.role: user
messages.role: assistant
messages.arguments: {"year": 1861, "full_name": true}
messages.name: US_president_in_year
messages.type: function
tools: [{"type": "function", "function": {"name": "US_president_in_year", "description": "Retrieve the name of the U.S. president in a given year.", "parameters": {"type": "dict", "properties": {"year": {"type": "integer", "description": "The year in question."}, "full_name": {"type": "boolean", "default": true, "description": "Option to return full name with middle initial, if applicable."}}, "required": ["year"]}}}]