arcGISMapImageSublayers property
The sublayers of an ArcGIS map image layer.
The collection is specific to a layer so you can't reuse a sublayer collection coming from another ArcGISMapImageLayer or ArcGISSublayer. You have to create a new layer collection.
Implementation
List<ArcGISMapImageSublayer> get arcGISMapImageSublayers =>
_arcGISMapImageSublayers.value;