These entries are queried from radb.net using whois, you can try my project getting these.
:AS-37545-PEERS as-set: AS-37545-PEERS descr: BURUNDI BACKBONE SYSTEM PEERS members: AS327798 members: AS25429 members: AS37586 members: AS37469 members: AS37336 members: AS37429 members: AS37695 members: AS327720 members: AS327734 members: AS327684 members: AS327879 members: AS20940 members: AS63293 tech-c: ACN1-AFRINIC admin-c: ACN1-AFRINIC mnt-by: BBS-MNT changed: *** [at] bbs.bi 20181207 changed: *** [at] bbs.bi 20190327 source: AFRINIC as-set: AS-37545-PEERS descr: AS37545 PEERS members: AS327798 members: AS25429 members: AS37586 members: AS37469 members: AS37336 members: AS37429 members: AS37695 members: AS327720 members: AS327734 members: AS327684 members: AS327879 members: AS20940 members: AS63293 tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: MAINT-AS37545 created: 2014-10-07T10:38:37Z last-modified: 2019-03-28T06:24:48Z 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: ****************************