code: def test_lcm(self):
      assert_allclose(
          np.lcm(5, 6), lcm(5, 6), atol=1e-7, check_dtype=False
      )
  
imports: import numpy
  from torch._numpy._ufuncs import *
  from torch._numpy.testing import assert_allclose
  from torch.testing._internal.common_utils import run_tests, TestCase
label_desc: Use image node_id 19 for calling the TestBinaryUfuncBasic obj's underlying member method code with example usage: obj.test_lcm() without return types