[
  {
    "type": "function",
    "function": {
      "name": "get_weather",
      "description": "Get current weather information for a location",
      "parameters": {
        "type": "object",
        "properties": {
          "location": {
            "type": "string",
            "description": "The city and state, e.g., San Francisco, CA"
          },
          "unit": {
            "type": "string",
            "enum": ["celsius", "fahrenheit"],
            "description": "The unit of temperature to use. Infer this from the query. Defaults to celsius if not specified."
          }
        },
        "required": ["location"]
      }
    }
  }
]