docs: def putlogo(figure=None):
      """Puts the CREDO logo at the bottom right of the current figure (or
      the figure given by the ``figure`` argument if supplied).
      """
      ip = get_ipython()
      if figure is None:
          figure=plt.gcf()
      curraxis= figure.gca()
      logoaxis = figure.add_axes([0.89, 0.01, 0.1, 0.1], anchor='NW')
      logoaxis.set_axis_off()
      logoaxis.xaxis.set_visible(False)
      logoaxis.yaxis.set_visible(False)
      logoaxis.imshow(credo_logo)
      figure.subplots_adjust(right=0.98)
      figure.sca(curraxis)