code: def test_transport(metric, get_mats):
      n_matrices, n_channels = 10, 3
      X = get_mats(n_matrices, n_channels, "spd")
      X_tr = transport(X, np.eye(n_channels), metric=metric)
      assert X_tr.shape == (n_matrices, n_channels, n_channels)
  
file_path: pyRiemann/tests/test_utils_tangent_space.py
imports: from conftest import get_metrics
  import numpy
  import pytest
  from pytest import approx
  from pyriemann.utils.distance import distance_riemann
  from pyriemann.utils.tangentspace import exp_map_euclid, exp_map_logeuclid, exp_map_riemann, log_map_euclid, log_map_logeuclid, log_map_riemann, upper, unupper, tangent_space, untangent_space, transport
label_desc: Use image node_id 9 for calling a global function with example usage: test_transport(metric, get_mats) without return types