addStyleLayer

@NonNull()
abstract fun addStyleLayer(@NonNull() properties: Value, @Nullable() layerPosition: LayerPosition): Expected<String, None>
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Adds a new [style layer](https://docs.mapbox.com/mapbox-gl-js/style-spec/#layers).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

properties

A map of style layer properties.

layerPosition

If not empty, the new layer will be positioned according to `layer position` parameters.