have partition responses share a common subclass
have partition responses share a common subclass

vortec/pykafka,appsoma/pykafka,tempbottle/pykafka,benauthor/pykafka,tempbottle/pykafka,sontek/pykafka,wikimedia/operations-debs-python-pykafka,sammerry/pykafka,thedrow/samsa,yungchin/pykafka,thedrow/samsa,sammerry/pykafka,jofusa/pykafka,yungchin/pykafka,thedrow/samsa,aeroevan/pykafka,wikimedia/operations-debs-python-pykafka,aeroevan/pykafka,appsoma/pykafka,sontek/pykafka,benauthor/pykafka,benauthor/pykafka,jofusa/pykafka,fortime/pykafka,fortime/pykafka,vortec/pykafka,wikimedia/operations-debs-python-pykafka