code: def test_einsum_sums_cfloat64(self):
      self.check_einsum_sums("c8")
      self.check_einsum_sums("c8", True)
  
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 12 for calling the TestEinsum obj's underlying member method code with example usage: obj.test_einsum_sums_cfloat64() without return types