code: def test_sum_boolean(self):
      a = np.arange(7) % 2 == 0
      res = a.sum()
      assert_equal(res, 4)
  
      res_float = a.sum(dtype=np.float64)
      assert_allclose(res_float, 4.0, atol=1e-15)
      assert res_float.dtype == "float64"
  
imports: from unittest import skipIf, SkipTest
  import numpy
  import pytest
  from pytest import raises
  from torch.testing._internal.common_utils import instantiate_parametrized_tests, parametrize, run_tests, TEST_WITH_TORCHDYNAMO, TestCase, xpassIfTorchDynamo
label_desc: Use image node_id 3 for calling the TestSum obj's underlying member method code with example usage: obj.test_sum_boolean() without return types