In cross_val, verbose parameter-functionality is not implemented

[zoldello]

If I do something like this -

from mtrf.stats import crossval

tmin, tmax = 0, 0.4  # range of time lag
regularization = 1000 # regularization parameter lambda
r_fwds = []

for i in range(0, len(subjects_residuals_group_1)):
    r_fwds.append(
        crossval(
            fwd_trf_group_1_envelope_unattended_speech,
            subjects_stim_group_1[i],
            subjects_residuals_group_1[i],
            128,
            tmin,
            tmax,
            regularization,
            average=False,
            verbose=True,
        )
    )

The verbose parameter is ignored.