code: def values(self):
          
          results = {}
          results['use_calfile'] = self.ui.calfileRadio.isChecked()
          results['calname'] = str(self.ui.calChoiceCmbbx.currentText())
          results['frange'] = (self.ui.frangeLowSpnbx.value(), self.ui.frangeHighSpnbx.value())
          return results
docs: Gets the values the user input to this dialog
  
          :returns: dict of inputs:
          |               *'use_calfile'*: bool, -- whether to apply calibration at all
          |               *'calname'*: str, -- the name of the calibration dataset to use
          |               *'frange'*: (int, int), -- (min, max) of the frequency range to apply calibration to