code: def test_min(self):
      x = matrix([[1, 2, 3], [4, 5, 6]])
      assert_equal(x.min(), 1)
      assert_equal(x.min(0), matrix([[1, 2, 3]]))
      assert_equal(x.min(1), matrix([[1], [4]]))
  
      assert_equal(np.min(x), 1)
      assert_equal(np.min(x, axis=0), matrix([[1, 2, 3]]))
      assert_equal(np.min(x, axis=1), matrix([[1], [4]]))
  
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
label_desc: Use image node_id 4 for calling the TestProperties obj's underlying member method code with example usage: obj.test_min() without return types