code: def test_riemannian_submersion_belongs_to_base(self, n_points, atol):
      point = self.data_generator.random_point(n_points)
  
      proj_point = self.bundle.riemannian_submersion(point)
      expected = gs.ones(n_points, dtype=bool)
  
      self._test_belongs_to_base(proj_point, expected, atol)
  
imports: import pytest
  import geomstats.backend
  from geomstats.geometry.fiber_bundle import FiberBundle
  from geomstats.geometry.matrices import Matrices
  from geomstats.geometry.special_orthogonal import SpecialOrthogonal
  from geomstats.test.random import RandomDataGenerator
  from geomstats.test.test_case import TestCase
  from geomstats.test.vectorization import generate_vectorization_data
label_desc: Use image node_id 6 for calling the FiberBundleTestCase obj's underlying member method code with example usage: obj.test_riemannian_submersion_belongs_to_base(n_points, atol) without return types