code: def test_shape(self):
      assert_equal(self.a.shape, (2, 1))
      assert_equal(self.m.shape, (2, 1))
  
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 1 for calling the TestShape obj's underlying member method code with example usage: obj.test_shape() without return types