code: def test_spaces(self):
      # gh-10794
      arr = np.array([[1]])
      for sp in itertools.product(["", " "], repeat=4):
          # no error for any spacing
          np.einsum("{}...a{}->{}...a{}".format(*sp), arr)
  
imports: import functools
  import itertools
  from unittest import expectedFailure, skipIf, SkipTest
  import torch._numpy
  from pytest import raises
  from torch._numpy.testing import assert_, assert_allclose, assert_almost_equal, assert_array_equal, assert_equal, suppress_warnings
  from torch.testing._internal.common_utils import instantiate_parametrized_tests, parametrize, run_tests, TestCase
label_desc: Use image node_id 9 for calling the TestEinsumPath obj's underlying member method code with example usage: obj.test_spaces() without return types