tude; therefore
            max_lr may not actually be reached depending on
            scaling function.
        step_size: number of training iterations per
            half cycle. Authors suggest setting step_size
            2-8 x training iterations in epoch.
        mode: one of {triangular, triangular2, exp_range}.
            Default &#39;triangular&#39;.
            Values correspond to policies detailed above.
            If scale_fn is not None, this argument is ignored.
        gamma: constant i