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