code: def idfunc(vals):
      """
      Print out a human readable format for the parameterized tests
      """
      dtype = (
          re.compile("float\d\d").search("{}".format(vals[1])).group()
      )
      return "{}_{}".format(vals[0], dtype)
  
imports: import itertools
  import numpy
  import pytest
  import re
  import os
  import sys
  from neon.backends import gen_backend
  from neon.backends.nervanacpu import NervanaCPU
  from neon.layers.container import DeltasTree
label_desc: Use image node_id 9 for calling a global function with example usage: idfunc(vals) and returns: str