his is the minimum fraction
        of time windows that need to contain essentially uncontaminated EEG
        (default=0.1).
    fit_quantiles : 2-tuple
        Quantile range [lower,upper] of the truncated generalized Gaussian
        distribution that shall be fit to the EEG contents (default=[0.022
        0.6]).
    step_sizes : 2-tuple
        Step size of the grid search; the first value is the stepping of the
        lower bound (which essentially steps over any dropout samples), and
        the se