code: def super_fast(start=0):
      yield start, 0.1
      yield 1, 0.1
  
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 3 for calling a global function with example usage: super_fast(start) without return types