docstr: Check projection belongs to manifold.
  
  Parameters
  ----------
  n_points : int
      Number of random points to generate.
  atol : float
      Absolute tolerance.
code: def test_projection_belongs(self, n_points, atol):
      """Check projection belongs to manifold.
  
      Parameters
      ----------
      n_points : int
          Number of random points to generate.
      atol : float
          Absolute tolerance.
      """
      point = self.data_generator.point_to_project(n_points)
      proj_point = self.space.projection(point)
      expected = gs.ones(n_points, dtype=bool)
  
      self.test_belongs(proj_point, expected, atol)
  
file_path: geomstats/geomstats/test_cases/geometry/mixins.py
imports: import pytest
  import geomstats.backend
  from geomstats.test.vectorization import generate_vectorization_data
label_desc: Use image node_id 3 for calling the ProjectionTestCaseMixins obj's underlying member method code with example usage: obj.test_projection_belongs(n_points, atol) without return types