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