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