ENUM
enum FilterDocumentsOrderBy {DOCUMENT_DATE_ASCDOCUMENT_DATE_DESCIMPORT_DATE_ASCIMPORT_DATE_DESCINVOICE_DATE_ASCINVOICE_DATE_DESCDUE_DATE_ASCDUE_DATE_DESCDISCOUNT_DUE_DATE_ASCDISCOUNT_DUE_DATE_DESCPAID_DATE_ASCPAID_DATE_DESCCOMMENT_DATE_ASCCOMMENT_DATE_DESCTOTAL_ASCTOTAL_DESCPARTNER_COMPANY_ASCPARTNER_COMPANY_DESCINVOICE_NUMBER_ASCINVOICE_NUMBER_DESCGENERAL_LEDGER_ACCOUNT_ASCGENERAL_LEDGER_ACCOUNT_DESCREAL_ESTATE_OBJECT_ASCREAL_ESTATE_OBJECT_DESC}