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