fromUrlAsync

fun fromUrlAsync(url: Resource, options: ArcGisMapServerImageryProvider.ConstructorOptions? = definedExternally): ERROR CLASS: Symbol not found for Promise<cesium/engine/ArcGisMapServerImageryProvider>(source)
fun fromUrlAsync(url: String, options: ArcGisMapServerImageryProvider.ConstructorOptions? = definedExternally): ERROR CLASS: Symbol not found for Promise<cesium/engine/ArcGisMapServerImageryProvider>(source)