code: def read_analog_pin(
              self, pin_number, adc_max_volts,
              dest_addr_long=None, output_type=const.ADC_RAW):
          
          sample = self.get_sample(dest_addr_long=dest_addr_long)
          try:
              return convert_adc(
                  sample[const.ANALOG_PINS[pin_number]],
                  output_type,
                  adc_max_volts
              )
          except KeyError:
              raise exceptions.ZigBeePinNotConfigured(
                  "Pin %s (%s) is not configured as an analog input." % (
                      pin_number, const.IO_PIN_COMMANDS[pin_number]))
docs: Fetches a sample and returns the integer value of the requested analog
          pin. output_type should be one of the following constants from
          xbee_helper.const:
  
          - ADC_RAW
          - ADC_PERCENTAGE
          - ADC_VOLTS
          - ADC_MILLIVOLTS