code: def test_masked_binary_operations2(self):
      # Tests domained_masked_binary_operation
      (x, mx) = self.data
      xmx = masked_array(mx.data.__array__(), mask=mx.mask)
      assert_(isinstance(divide(mx, mx), MMatrix))
      assert_(isinstance(divide(mx, x), MMatrix))
      assert_equal(divide(mx, mx), divide(xmx, xmx))
  
imports: import pickle
  import numpy
  from numpy.testing import assert_warns
  from numpy.ma.testutils import assert_, assert_equal, assert_raises, assert_array_equal
  from numpy.ma.core import masked_array, masked_values, masked, allequal, MaskType, getmask, MaskedArray, nomask, log, add, hypot, divide
  from numpy.ma.extras import mr_
label_desc: Use image node_id 5 for calling the TestSubclassing obj's underlying member method code with example usage: obj.test_masked_binary_operations2() without return types