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