o FDi@s,ddlmZmZddZddZddZdS) )isliceteeccs<t|}tt||}|r|Vtt||}|sdSdSN)iterlistr)seqnititemr S/var/www/Datamplify/venv/lib/python3.10/site-packages/asynch/proto/utils/helpers.pychunkss r c#sd|D]}t|ttfstdt|dqfdd|D} dd|D}t|s.dS|Vq!)NzUnsupported column type: z. list or tuple is expected.csg|]}t|qSr )r .0columnrr r z!column_chunks..TcSsg|]}t|gqSr )nextrr r r rr) isinstancertuple TypeErrortypeany)columnsrrgr r rr column_chunks srcCs t|\}}t|dt||Sr)rrzip)iterableabr r r pairwises   r!N) itertoolsrrr rr!r r r r s