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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _bselect(self, selection, start_bindex, end_bindex):
 """ add the given buffer indices to the given QItemSelection, both byte and char panes """

        selection.select(self._model.index2qindexb(start_bindex), self._model.index2qindexb(end_bindex))
        selection.select(self._model.index2qindexc(start_bindex), self._model.index2qindexc(end_bindex))