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