code: private static WlCoef_I32 generateInv_I32() {
  		WlCoef_I32 ret = new WlCoef_I32();
  
  		ret.scaling = new int[]{1,1};
  		ret.wavelet = new int[]{ret.scaling[0],-ret.scaling[0]};
  		ret.denominatorScaling = 2;
  		ret.denominatorWavelet = 2;
  
  		return ret;
  	}
docs: Create a description for the inverse transform.  Note that this will NOT produce
  an exact copy of the original due to rounding error.
  
  @return Wavelet inverse coefficient description.