code: def _print_timestack(stack, level=1):
      print("-" * level, "%.2f %s%s" % (stack[2], stack[0], stack[3]))
      for s in stack[1]:
          _print_timestack(s, level + 1)
  
imports: import timeit
  import math
label_desc: Use image node_id 3 for calling a global function with example usage: _print_timestack(stack, level) without return types