code: def test_submersion_is_zero(self, point, submersion_shape, atol):
      # TODO: keep?
      batch_shape = get_batch_shape(self.space.point_ndim, point)
      expected = gs.zeros(batch_shape + submersion_shape)
  
      self.test_submersion(point, expected, atol)
  
imports: import pytest
  import geomstats.backend
  from geomstats.test.random import EmbeddedSpaceRandomDataGenerator, MatrixVectorSpaceRandomDataGenerator, VectorSpaceRandomDataGenerator
  from geomstats.test.vectorization import generate_vectorization_data
  from geomstats.test_cases.geometry.complex_manifold import ComplexManifoldTestCase
  from geomstats.test_cases.geometry.manifold import ManifoldTestCase
  from geomstats.test_cases.geometry.mixins import ProjectionTestCaseMixins
  from geomstats.vectorization import get_batch_shape
label_desc: Use image node_id 3 for calling the LevelSetTestCase obj's underlying member method code with example usage: obj.test_submersion_is_zero(point, submersion_shape, atol) without return types