code: def _ParameterDecorator(naming_type, testcases):
      """Implementation of the parameterization decorators.
  
      Args:
        naming_type: The naming type.
        testcases: Testcase parameters.
  
      Returns:
        A function for modifying the decorated object.
      """
  
      def _Apply(obj):
          if isinstance(obj, type):
              _ModifyClass(
                  obj,
                  list(testcases)
                  if not isinstance(testcases, collections.Sequence)
                  else testcases,
                  naming_type,
              )
              return obj
          else:
              return _ParameterizedTestIter(obj, testcases, naming_type)
  
      if _IsSingletonList(testcases):
          assert _NonStringIterable(
              testcases[0]
          ), "Single parameter argument must be a non-string iterable"
          testcases = testcases[0]
  
      return _Apply
  
imports: import collections
  import functools
  import re
  import types
  import uuid
  import six
label_desc: Use image node_id 7 for calling a global function with example usage: _ParameterDecorator(naming_type, testcases) and returns: _Apply, obj, _ParameterizedTestIter