code: def start_anim(event):
      canvas.mpl_disconnect(start_anim.cid)
  
      start_anim.timer.add_callback(animation.draw)
      start_anim.timer.start()
      canvas.mpl_connect("draw_event", on_redraw)
  
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 a global function with example usage: start_anim(event) without return types