def plot_evoked(evoked, picks=None, exclude='bads', unit=True, show=True,
                ylim=None, xlim='tight', proj=False, hline=None, units=None,
                scalings=None, titles=None, axes=None, gfp=False,
                window_title=None, spatial_colors=False):
    return _plot_evoked(evoked=evoked, picks=picks, exclude=exclude, unit=unit,
                        show=show, ylim=ylim, proj=proj, xlim=xlim,
                        hline=hline, units=units, scalings=scalings,
                        titles=titles, axes=axes, plot_type="butterfly",
                        gfp=gfp, window_title=window_title,
                        spatial_colors=spatial_colors, selectable=True)
Plot evoked data using butteryfly plots
dataset/ETHPy150Open mne-tools/mne-python/mne/viz/evoked.py/plot_evoked