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