How to use the mnelab.dialogs.ErrorMessageBox function in mnelab

tmax = dialog.tmax.value()

            if dialog.baseline.isChecked():
                baseline = dialog.a.value(), dialog.b.value()
            else:
                baseline = None

            duplicated = self.auto_duplicate()
            try:
                self.model.epoch_data(events, tmin, tmax, baseline)
            except ValueError as e:
                if duplicated:  # undo
                    self.model.remove_data()
                    self.model.index -= 1
                    self.data_changed()
                msgbox = ErrorMessageBox(self, "Could not create epochs",
                                         str(e), traceback.format_exc())
                msgbox.show()

def interpolate_bads(self):
        """Interpolate bad channels"""
        dialog = InterpolateBadsDialog(self)
        if dialog.exec_():
            duplicated = self.auto_duplicate()
            try:
                self.model.interpolate_bads(dialog.reset_bads, dialog.mode,
                                            dialog.origin)
            except ValueError as e:
                if duplicated:  # undo
                    self.model.remove_data()
                    self.model.index -= 1
                    self.data_changed()
                msgbox = ErrorMessageBox(self,
                                         "Could not interpolate bad channels",
                                         str(e), traceback.format_exc())
                msgbox.show()