[  
	{
		"name": "get_order_status",
		"description": "get order status like delivery remaining time",
        "parameters": {
            "type": "object",
            "properties": {
                "order_number": {
                  "type": "string",
                  "description": "order number."
                }
            },
            "required": ["order_number"]
        }
	}
]