code: def set_y_as_percent(ax):
      yticks = 100 * ax.get_yticks()
      yticklabels = ["{0:.4g}%".format(y) for y in yticks]
      ax.set_yticks(ax.get_yticks().tolist())
      ax.set_yticklabels(yticklabels)
      return ax
  
imports: from __future__ import absolute_import, division, print_function
  import logging
  import numpy
  import pandas
  from prophet.diagnostics import performance_metrics
label_desc: Use image node_id 8 for calling a global function with example usage: set_y_as_percent(ax) and returns: ax