def columnCount(self, parent):
        return len(self.header)
Gets the underlying request object. The request is typically either
dataset/ETHPy150Open Kilian/Trimage/src/trimage/trimage.py/TriTableModel.columnCount--crossover with--dataset/ETHPy150Open rwl/muntjac/muntjac/terminal/gwt/server/abstract_communication_manager.py/IRequest.getWrappedRequest