code: def test_list(self):
      assert_array_equal(
          matrix_power([[0, 1], [0, 0]], 2), [[0, 0], [0, 0]]
      )
  
imports: import collections.abc
  import numpy
  from numpy import matrix, asmatrix, bmat
  from numpy.testing import assert_, assert_equal, assert_almost_equal, assert_array_equal, assert_array_almost_equal, assert_raises
  from numpy.linalg import matrix_power
  from numpy.matrixlib import mat
label_desc: Use image node_id 2 for calling the TestPower obj's underlying member method code with example usage: obj.test_list() without return types