code: def _faster(self):
      self.vx *= 5.0
      self.vy *= 5.0
  
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 5 for calling the Puck obj's underlying member method code with example usage: obj._faster() without return types