def preload_record_data(self, obj):

        kwargs = {}
        if self.forward_callback_target and \
                getattr(self.forward_callback_target, 'preload_record_data'):
            kwargs.update(self.forward_callback_target.preload_record_data(obj))
        return kwargs
The offset will be the CHUNK_SIZE * total number of chunks in the
dataset/ETHPy150Open pivotal-energy-solutions/django-datatable-view/datatableview/datatables.py/Datatable.preload_record_data--crossover with--dataset/ETHPy150Open girder/girder/girder/utility/gridfs_assetstore_adapter.py/GridFsAssetstoreAdapter.requestOffset