docstr: Check basis elements belong to vector space.
  
  Parameters
  ----------
  atol : float
      Absolute tolerance.
docstr_tok: ["Check","basis","elements","belong","to","vector","space",".","Parameters","--","--","--","--","--","atol",":","float","Absolute","tolerance","."]
code: def test_basis_belongs(self, atol):
      """Check basis elements belong to vector space.
  
      Parameters
      ----------
      atol : float
          Absolute tolerance.
      """
      result = self.space.belongs(self.space.basis, atol=atol)
      self.assertAllEqual(result, gs.ones_like(result))
  
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 2 for calling the VectorSpaceTestCase obj's underlying member method code with example usage: obj.test_basis_belongs(atol) without return types