code: def test_void_to_string_special_case(self):
      # Cover a small special case in void to string casting that could
      # probably just as well be turned into an error (compare
      # `test_object_to_parametric_internal_error` below).
      assert np.array([], dtype="V5").astype("S").dtype.itemsize == 5
      assert (
          np.array([], dtype="V5").astype("U").dtype.itemsize == 4 * 5
      )
  
imports: import pytest
  import textwrap
  import enum
  import random
  import ctypes
  import numpy
  from numpy.lib.stride_tricks import as_strided
  from numpy.testing import assert_array_equal
  from numpy._core._multiarray_umath import _get_castingimpl
label_desc: Use image node_id 12 for calling the TestCasting obj's underlying member method code with example usage: obj.test_void_to_string_special_case() without return types