# Pastebin XOzn2XSW
i.e.:
inst_uuids = [1, 2, 3, 4 ]
mig_uuids = [5, 6, 7, 8 ]

consumer_uuid = 9
consumer_type = None 

if not (consumer_uuid in inst_uuids or consumer_uuid in mig_uuids):
    consumer_type = 'migration'
    
    if not(consumer_uuid in inst_uuids):
        consumer_type = 'instance'

print(consumer_type)