code: def test_distances_all_triangle_inequality(kind, dist, get_mats):
      n_matrices, n_channels = 3, 4
      mats = get_mats(n_matrices, n_channels, kind)
      A, B, C = mats[0], mats[1], mats[2]
      assert dist(A, B) <= dist(A, C) + dist(C, B)
  
imports: from conftest import get_distances
  import numpy
  from numpy.testing import assert_array_almost_equal
  from scipy.spatial.distance import euclidean, mahalanobis
  import pytest
  from pytest import approx
  from pyriemann.utils.distance import distance_euclid, distance_harmonic, distance_kullback, distance_kullback_right, distance_kullback_sym, distance_logdet, distance_logeuclid, distance_riemann, distance_wasserstein, distance, pairwise_distance, distance_mahalanobis
  from pyriemann.utils.base import logm
  from pyriemann.utils.geodesic import geodesic
  from pyriemann.utils.test import is_sym
label_desc: Use image node_id 11 for calling a global function with example usage: test_distances_all_triangle_inequality(kind, dist, get_mats) without return types