{"title":"thumbnail","type":"object","$schema":"http://json-schema.org/draft-07/schema","description":"Object containing a thumbnail image.","properties":{"url":{"type":"string","description":"The URI pointing to the thumbnail image. Can be a URL or a base64-encoded image."}},"required":["url"],"additionalProperties":false,"esriDocumentation":{"examples":[{"title":"url","code":{"thumbnail":{"url":"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAA..."}}}]}}