For AI agents: a documentation index is available at /llms.txt. Markdown versions of all pages
are available by appending .md to any URL.
setCircleRadiusStepAwait
suspend fun MTStyle.setCircleRadiusStepAwait(layerId: String, key: MTFeatureKey = MTFeatureKey.POINT_COUNT, defaultRadius: Double, stops: List<Pair<Double, Double>>)