1. Classes
2. NiceApprovalStep
3. NiceBarcodeGenerator
4. NiceBusinessCard
5. NiceDocumentApprovalFlow
6. NiceDocumentVersion
7. NiceDocumentVersionList
8. NiceInbox
9. NiceInboxMessage
10. NiceQRCode
11. Enums
12. NiceApprovalStatus
13. NiceBarcodeType
14. NiceBusinessType
15. NiceDocVersionStatus
16. NiceMessagePriority
17. NiceQRErrorCorrection