The file attached to a part
The type of attachment
The name of the attachment
The URL of the attachment
The content type of the attachment
The size of the attachment
The width of the attachment
The height of the attachment
{ "type": "upload", "name": "example.png", "url": "https://picsum.photos/200/300", "content_type": "image/png", "filesize": 100, "width": 100, "height": 100 }