TableTools fnCellRenderer: how to get underlying datatables data?

xplicit

I'm using TableTools fnCellRenderer function to strip off <input> elements for true/false checkbox columns when export. However, fnCellRenderer signature (function fnCellRenderer(value, column, row, iDataIndex)) does not allow to get underlying original data from datatables, it allows only to get html rendered data from 'value' or 'row' parameter. But I don't need html from datatables, I need an original data to export data properly. How can I get the reference to exported datatables row and column from TableTools fnCellRenderer?