code: def unary_op_like_np_test_data(self):
      smoke_data = [
          dict(func_name="trace", a=rand(2, 2)),
          dict(func_name="trace", a=rand(3, 3)),
          dict(
              func_name="linalg.cholesky",
              a=SPDMatrices(3).random_point(),
          ),
          dict(
              func_name="linalg.eigvalsh",
              a=SymmetricMatrices(3).random_point(),
          ),
          dict(
              func_name="linalg.matrix_rank",
              a=gs.array([[1.0, -1.0], [1.0, -1.0], [0.0, 0.0]]),
          ),
      ]
      return self.generate_tests(smoke_data)
  
file_path: geomstats/tests/tests_geomstats/test_backend/data/against_numpy.py
imports: import geomstats.backend
  from geomstats.geometry.spd_matrices import SPDMatrices
  from geomstats.geometry.symmetric_matrices import SymmetricMatrices
  from geomstats.test.data import TestData
label_desc: Use image node_id 6 for calling the AgainstNumpyTestData obj's underlying member method code with example usage: obj.unary_op_like_np_test_data() and returns: self