code: def progress_fast():
      yield 0, 0.2
      for i in range(10):
          yield 0.9 + (i // 5) * 0.03, 0.2
      while True:
          yield 1, 0
  
imports: from io import StringIO
  import math
  import random
  import time
  from h2o.utils.progressbar import ProgressBar, ProgressBarWidget, PBWBar, PBWPercentage, PBWString, RenderResult
label_desc: Use image node_id 2 for calling a global function with example usage: progress_fast() without return types