What was the mother wavelet function used for computing the wavelet features by SlicerRadiomic?

Hello, I am doing some work about radiomic feature extraction from chest CT by SlicerRadiomic, and I want to know what was the mother wavelet function used for computing the wavelet features? Thanks!

SlicerRadiomics is using pyradiomics for feature extraction, which in turn is using pywavelets for wavelet decomposition (see this code). The default type of wavelet decomposition pyradiomics is using is coif1.