RasterDEMSourceSpecification
fun RasterDEMSourceSpecification(url: String? = null, tiles: Array<String>? = null, bounds: Array<Double>? = null, minzoom: Int? = null, maxzoom: Int? = null, tileSize: Int? = null, attribution: String? = null, encoding: String? = null, redFactor: Double? = null, blueFactor: Double? = null, greenFactor: Double? = null, baseShift: Double? = null): RasterDEMSourceSpecification(source)