How to use Googleearth imagery provider and also teeraine

CesiumJS
1

For Arc i used like this:—
var viewer = new Cesium.Viewer(‘cesiumContainer’, {
imageryProvider: new Cesium.ArcGisMapServerImageryProvider({
url : ‘World_Imagery (MapServer)’
}),
baseLayerPicker: true,
// timeline:false,
infoBox: false,
})

But for Google Imagery what can i use please anyone help me or modify my above code