add
open fun addStyleCustomLayer(layerId: String, layerHost: CustomLayerHost, layerPosition: LayerPosition?): Expected<String, None>
Adds a new style custom layer.
Runtime style layers are valid until they are either removed or a new style is loaded.
Return
A string describing an error if the operation was not successful, or empty otherwise.
Parameters
layer
A style layer identifier.
layer
The CustomLayerHost.
layer
If not empty, the new layer will be positioned according to LayerPosition parameters.