loadAsync
fun loadAsync(data: Resource, options: GeoJsonDataSource.Companion.LoadOptions? = definedExternally): Promise<GeoJsonDataSource>(source)
fun loadAsync(data: String, options: GeoJsonDataSource.Companion.LoadOptions? = definedExternally): Promise<GeoJsonDataSource>(source)
fun loadAsync(data: Any, options: GeoJsonDataSource.Companion.LoadOptions? = definedExternally): Promise<GeoJsonDataSource>(source)