code: def start(self):
      # Used for the *init_func* parameter of FuncAnimation; this is called when
      # initializing the animation, and also after resizing the figure.
      return (self.line,)
  
file_path: matplotlib/galleries/examples/animation/bayes_update.py
imports: import math
  import matplotlib.pyplot
  import numpy
  from matplotlib.animation import FuncAnimation
label_desc: Use image node_id 2 for calling the UpdateDist obj's underlying member method code with example usage: obj.start() and returns: self