code: @Override
      public void setEventThreshold(double threshold, GpioPinAnalogInput...pin){
          for(GpioPin p : pin){
              setEventThreshold(threshold, p.getPin());
          }
      }
docs: Set the event threshold value for a given analog input pin.
  
  The event threshold value determines how much change in the
  analog input pin's conversion value must occur before the
  framework issues an analog input pin change event.  A threshold
  is necessary to prevent a significant number of analog input
  change events from getting propagated and dispatched for input
  values that may have an expected range of drift.
  
  see the DEFAULT_THRESHOLD constant for the default threshold value.
  
  @param threshold threshold value for requested analog input pin.
  @param pin analog input pin (vararg, one or more inputs can be defined.)