How to view contents of Wavelet object?

I was looking at a code of Sparse reconstruction where they use a matlab toolbox- wavelab850. A line from the code is

%generate transform operator

XFM = Wavelet('Daubechies',4,4); % Wavelet

The wavelet object XFM is generated in matlab and is passed on to functions as:

% initialize Parameters for reconstruction

param = init;

param.FT = FT;

param.XFM = XFM;

param.TV = TVOP;

param.data = data;

param.TVWeight =TVWeight; % TV penalty

param.xfmWeight = xfmWeight; % L1 wavelet penalty

param.Itnlim = Itnlim;

res = XFM*im_dc;

Now when try to look into contents of XFM it just shows as :

XFM =

Wavelet object: 1-by-1

My question is how to access contents of XFM?