code: def basis_test_data(self):
      smoke_data = [
          dict(expected=gs.array([[[1.0]]])),
      ]
      return self.generate_tests(smoke_data)
  
file_path: geomstats/tests/tests_geomstats/test_geometry/data/symmetric_matrices.py
imports: import geomstats.backend
  from geomstats.test.data import TestData
  from .base import MatrixVectorSpaceTestData
label_desc: Use image node_id 1 for calling the SymmetricMatrices1TestData obj's underlying member method code with example usage: obj.basis_test_data() and returns: self