code: def plot_discrete(self, show=False):
          
          import matplotlib.pyplot as plt
          from mpl_toolkits.mplot3d import Axes3D  # NOQA
          fig = plt.figure()
          axis = fig.add_subplot(111, projection='3d')
          for discrete in self.discrete:
              axis.plot(*discrete.T)
          if show:
              plt.show()
docs: Plot closed curves
  
          Parameters
          ------------
          show : bool
             If False will not execute matplotlib.pyplot.show