code: def custom_name_func(testcase_func, param_num, param):
      return "%s_%s" % (
          testcase_func.__name__,
          parameterized.to_safe_name(
              "_".join(str(x) for x in param.args)
          ),
      )
  
imports: from __future__ import absolute_import, print_function, division
  from copy import copy, deepcopy
  from functools import wraps
  import logging
  import sys
  import unittest
  from parameterized import parameterized
  from nose.tools import assert_raises
  from six import integer_types
  from six.moves import StringIO
  import numpy
  import theano
  import theano.tensor
  from theano import config
label_desc: Use image node_id 1 for calling a global function with example usage: custom_name_func(testcase_func, param_num, param) and returns: unknown