These entries are queried from radb.net using whois, you can try my project getting these.
:AS-MYTRINITY as-set: AS-MYTRINITY descr: TRINITY AS-SET tech-c: DUMY-RIPE admin-c: DUMY-RIPE members: AS43554 members: AS35273 members: AS204384 members: AS-DORIS members: AS211297 mnt-by: CDS-UA-MNT created: 2010-06-24T18:46:34Z last-modified: 2021-05-31T14:41:35Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: ****************************