code: def draw(self):
      draw_artist = self.ax.draw_artist
      if self.background is None:
          self.background = self.canvas.copy_from_bbox(self.ax.bbox)
  
      # restore the clean slate background
      self.canvas.restore_region(self.background)
  
      # show the distractors
      if self.distract:
          self.line.set_ydata(np.sin(self.x + self.cnt / self.res))
          self.line2.set_ydata(np.cos(self.x - self.cnt / self.res))
          self.line3.set_ydata(np.tan(self.x + self.cnt / self.res))
          self.line4.set_ydata(np.tan(self.x - self.cnt / self.res))
          draw_artist(self.line)
          draw_artist(self.line2)
          draw_artist(self.line3)
          draw_artist(self.line4)
  
      # pucks and pads
      if self.on:
          self.ax.draw_artist(self.centerline)
          for pad in self.pads:
              pad.disp.set_y(pad.y)
              pad.disp.set_x(pad.x)
              self.ax.draw_artist(pad.disp)
  
          for puck in self.pucks:
              if puck.update(self.pads):
                  # we only get here if someone scored
                  self.pads[0].disp.set_label(
                      f"   {self.pads[0].score}"
                  )
                  self.pads[1].disp.set_label(
                      f"   {self.pads[1].score}"
                  )
                  self.ax.legend(
                      loc="center",
                      framealpha=0.2,
                      facecolor="0.5",
                      prop=FontProperties(
                          size="xx-large", weight="bold"
                      ),
                  )
  
                  self.background = None
                  self.ax.figure.canvas.draw_idle()
                  return
              puck.disp.set_offsets([[puck.x, puck.y]])
              self.ax.draw_artist(puck.disp)
  
      # just redraw the Axes rectangle
      self.canvas.blit(self.ax.bbox)
      self.canvas.flush_events()
      if self.cnt == 50000:
          # just so we don't get carried away
          print("...and you've been playing for too long!!!")
          plt.close()
  
      self.cnt += 1
  
imports: import time
  import matplotlib.pyplot
  import numpy
  from numpy.random import randint, randn
  from matplotlib.font_manager import FontProperties
label_desc: Use image node_id 2 for calling the Game obj's underlying member method code with example usage: obj.draw() without return types