code: def test_view_simple_dtype(self):
      (mrec, a, b, arr) = self.data
      ntype = (float, 2)
      test = mrec.view(ntype)
      assert_(isinstance(test, ma.MaskedArray))
      assert_equal(test, np.array(list(zip(a, b)), dtype=float))
      assert_(test[3, 1] is ma.masked)
  
imports: import pickle
  import numpy
  import numpy.ma
  from numpy.ma import masked, nomask
  from numpy.testing import temppath
  from numpy._core.records import recarray, fromrecords, fromarrays
  from numpy.ma.mrecords import MaskedRecords, mrecarray, fromarrays, fromtextfile, fromrecords, addfield
  from numpy.ma.testutils import assert_, assert_equal, assert_equal_records
label_desc: Use image node_id 3 for calling the TestView obj's underlying member method code with example usage: obj.test_view_simple_dtype() without return types