syntax for whereNotIn for mysql while building query in objection Js

[tusharSharma5512]

i want to find rows from table 1 which does not exist in table 2. depending on two columns.
I'm trying to build a query in objection js but not getting the required answer. and the entries are same but column names are different.
Here is my query :-
let miniShift = await createModel.query()
.select('txnShiftUniqueId', 'shiftName', 'laneName', 'txnDate', 'txnShiftDetail.uidCby')
.leftJoin('mstShift', 'mstShift.shiftId', 'txnShiftDetail.shiftId')
.leftJoin('pmtrLane', 'pmtrLane.isEnabled', 'txnShiftDetail.isEnabled')
.whereNotIn('txnShiftDetail.shiftId', ['txnCashup'])
.whereNotIn('txnShiftDetail.laneId', ['txnCashup'])
.whereNotIn('txnShiftDetail.uidCby', ['txnCashup'])