class_docstr: Tests for iterative unpacking (struct.Struct.iter_unpack).
code: def test_uninstantiable(self):
      iter_unpack_type = type(struct.Struct(">ibcp").iter_unpack(b""))
      self.assertRaises(TypeError, iter_unpack_type)
  
imports: from collections import abc
  import array
  import gc
  import math
  import operator
  import unittest
  import struct
  import sys
  import weakref
  from test import support
  from test.support import import_helper
  from test.support.script_helper import assert_python_ok
label_desc: Use image node_id 2 for calling the UnpackIteratorTest obj's underlying member method code with example usage: obj.test_uninstantiable() without return types