client.getFloatingIPExtensionForZone(region).get().deallocate(ip.getId());
The to-be-destroyed FIP: {id=6091, ip=15.185.119.202, fixedIp=null, instanceId=null}
Pre-deletion: list of account FIPs: [{id=990, ip=15.185.99.221, fixedIp=null, instanceId=null}, {id=5913, ip=15.185.119.24, fixedIp=10.4.39.119, instanceId=87151}, {id=6091, ip=15.185.119.202, fixedIp=10.4.74.222, instanceId=107133}, {id=6995, ip=15.185.123.82, fixedIp=10.4.68.157, instanceId=103524}, {id=7085, ip=15.185.123.172, fixedIp=10.4.71.230, instanceId=106058}, {id=7119, ip=15.185.123.206, fixedIp=10.4.72.38, instanceId=106114}, {id=7121, ip=15.185.123.208, fixedIp=10.4.0.155, instanceId=106092}, {id=7122, ip=15.185.123.209, fixedIp=10.4.71.249, instanceId=106093}, {id=7124, ip=15.185.123.211, fixedIp=10.4.30.42, instanceId=106100}, {id=7125, ip=15.185.123.212, fixedIp=10.4.72.28, instanceId=106101}, {id=7134, ip=15.185.123.221, fixedIp=10.4.72.41, instanceId=106111}]
Post-deletion: list of account FIPs: [{id=990, ip=15.185.99.221, fixedIp=null, instanceId=null}, {id=5913, ip=15.185.119.24, fixedIp=10.4.39.119, instanceId=87151}, {id=6995, ip=15.185.123.82, fixedIp=10.4.68.157, instanceId=103524}, {id=7085, ip=15.185.123.172, fixedIp=10.4.71.230, instanceId=106058}, {id=7119, ip=15.185.123.206, fixedIp=10.4.72.38, instanceId=106114}, {id=7121, ip=15.185.123.208, fixedIp=10.4.0.155, instanceId=106092}, {id=7122, ip=15.185.123.209, fixedIp=10.4.71.249, instanceId=106093}, {id=7124, ip=15.185.123.211, fixedIp=10.4.30.42, instanceId=106100}, {id=7125, ip=15.185.123.212, fixedIp=10.4.72.28, instanceId=106101}, {id=7134, ip=15.185.123.221, fixedIp=10.4.72.41, instanceId=106111}]