code: def test_ellipsis(self):
      for shape, pattern, expected in [
          ([10, 20], "...", dict()),
          ([10], "... a", dict(a=10)),
          ([10, 20], "... a", dict(a=20)),
          ([10, 20, 30], "... a", dict(a=30)),
          ([10, 20, 30, 40], "... a", dict(a=40)),
          ([10], "a ...", dict(a=10)),
          ([10, 20], "a ...", dict(a=10)),
          ([10, 20, 30], "a ...", dict(a=10)),
          ([10, 20, 30, 40], "a ...", dict(a=10)),
          ([10, 20, 30, 40], " a ... b", dict(a=10, b=40)),
          ([10, 40], " a ... b", dict(a=10, b=40)),
      ]:
          x = numpy.ones(shape)
          parsed1 = parse_shape(x, pattern)
          parsed2 = parse_shape(self.backend.from_numpy(x), pattern)
          assert parsed1 == parsed2 == expected
  
imports: import sys
  import unittest
  from doctest import testmod
  from typing import Dict, List, Optional
  import numpy
  import pytest
  from parameterized import parameterized, parameterized_class
  import einops
  import einops.layers
  import einops.parsing
  from einops._backends import AbstractBackend
  from einops.einops import rearrange, parse_shape, _optimize_transformation
  from .None import collect_test_backends, is_backend_tested
label_desc: Use image node_id 7 for calling the TestParseShapeImperative obj's underlying member method code with example usage: obj.test_ellipsis() without return types