code: def close(self):
          
          from matplotlib.pyplot import close
          for ax in self.axes[::-1]:
              # avoid matplotlib/matplotlib#9970
              ax.set_xscale('linear')
              ax.set_yscale('linear')
              # clear the axes
              ax.cla()
          # close the figure
          close(self)
docs: Close the plot and release its memory.