code: def test_transpose(self, mat, expected, atol):
      res = Matrices.transpose(mat)
      self.assertAllClose(res, expected, atol=atol)
  
imports: import pytest
  import geomstats.backend
  from geomstats.geometry.matrices import Matrices
  from geomstats.test.test_case import TestCase
  from geomstats.test.vectorization import generate_vectorization_data
  from geomstats.test_cases.geometry.base import MatrixVectorSpaceTestCase
  from geomstats.test_cases.geometry.euclidean import EuclideanMetricTestCase
label_desc: Use image node_id 13 for calling the MatrixOperationsTestCase obj's underlying member method code with example usage: obj.test_transpose(mat, expected, atol) without return types