code: def safe_enumerate(iterable):
      """Enumerate which does not yield None values"""
      for i, v in enumerate(iterable):
          if v is not None:
              yield i, v
  
imports: from __future__ import division
  import re
  from decimal import Decimal
  from math import ceil, cos, floor, log10, pi, sin
label_desc: Use image node_id 22 for calling a global function with example usage: safe_enumerate(iterable) without return types