readAttributeFeatureMap(completionHandler:)
Declaration
func readAttributeFeatureMap(completionHandler: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeFeatureMap() async throws -> NSNumberfunc readAttributeFeatureMap(completionHandler: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeFeatureMap() async throws -> NSNumber