Ad image value

Property	Type	Description
large	ImageURL	A large version of the image asset. Not applicable for the Small Rectangle image type
small	ImageURL	A small version of the image asset

Example

{
    "large": {
        "url": "https://www.example.com/img.jpg",
        "width": 627,
        "height": 627
    },
    "small": {
        "url": "https://www.example.com/img.jpg",
        "width": 128,
        "height": 128
    }
}