{"operationalLayers":[],"baseMap":{"baseMapLayers":[{"id":"layer0","layerType":"ArcGISTiledMapServiceLayer","url":"https://services.arcgisonline.com/arcgis/rest/services/Canvas/World_Dark_Gray_Base/MapServer","visibility":true,"opacity":1,"title":"World Dark Gray Canvas Base"},{"id":"World_Dark_Gray_Reference_8618","layerType":"ArcGISTiledMapServiceLayer","url":"https://services.arcgisonline.com/arcgis/rest/services/Canvas/World_Dark_Gray_Reference/MapServer","visibility":true,"opacity":1,"title":"World Dark Gray Reference","isReference":true}],"title":"Dark Gray Canvas"},"spatialReference":{"wkid":102100,"latestWkid":3857},"authoringApp":"WebMapViewer","authoringAppVersion":"4.1","version":"2.4"}