def METHOD_NAME(self) -> tuple[ParamRawDataType, ...]:
    assert isinstance(self.instrument, Ithaco_1211)
    volt = self._measured_param.get()
    current = (self.instrument.sens.get() *
               self.instrument.sens_factor.get()) * volt
    if self.instrument.invert.get():
        current *= -1
    value = (volt, current)
    return value