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