get Geo Json Cluster Leaves
suspend fun MapboxMap.getGeoJsonClusterLeaves(sourceIdentifier: String, cluster: Feature, limit: Long, offset: Long): Expected<String, FeatureExtensionValue>
Returns all the leaves (original points) of a cluster (given its cluster_id) from a GeoJsonSource, with pagination support: limit is the number of leaves to return (set to Infinity for all points), and offset is the amount of points to skip (for pagination).
Requires configuring the source as a cluster by calling GeoJsonSource.Builder#cluster(boolean).
Return
a feature collection or a string describing an error.