code: def test_basis_representation_and_basis(self, n_points, atol):
      mat = self.data_generator.random_point(n_points)
      vec = self.space.basis_representation(mat)
  
      res = gs.einsum("...i,...ijk->...jk", vec, self.space.basis)
      self.assertAllClose(res, mat, atol=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 4 for calling the MatrixVectorSpaceTestCase obj's underlying member method code with example usage: obj.test_basis_representation_and_basis(n_points, atol) without return types