How do you pass in the 'detail' parameter for the new Vision image APIs as input?

as per title, the content here mentions the ability to pass in the “detail” parameter but I don’t see any examples of where this should be passed in, does anyone have any examples? OpenAI Platform

Here is a json payload example:

{
    "model": "gpt-4-vision-preview",
    "messages": [
        {
            "role": "user",
            "content": [
                {
                    "type": "text",
                    "text": "What’s in this image?"
                },
                {
                    "type": "image_url",
                    "image_url": {
                        "url": "https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Gfp-wisconsin-madison-the-nature-boardwalk.jpg/2560px-Gfp-wisconsin-madison-the-nature-boardwalk.jpg",
                        "detail": "low"
                    }
                }
            ]
        }
    ]
}