code: def autoRangeMethod(self):
          
          if self.methodCti:
              return self.methodCti.configValue
          else:
              assert len(self._rangeFunctions) == 1, \
                  "Assumed only one _rangeFunctions. Got: {}".format(self._rangeFunctions)
              return list(self._rangeFunctions.keys())[0]
docs: The currently selected auto range method.
              If there is no method child CTI, there will be only one method (which will be returned).