code: def _get_transpose_shape(mat):
      return mat.shape[::-1][:2]
  
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 1 for calling the MatrixOperationsTestCase obj's underlying member method code with example usage: obj._get_transpose_shape(mat) and returns: mat