def METHOD_NAME(self):
    import copy
    from music21 import stream
    from music21 import note
    m = stream.Measure()
    c = note.Note('C4', type='quarter')
    m.append(c)
    d1 = note.Note('D4', type='eighth')
    d2 = note.Note('D4', type='eighth')
    m.append([d1, d2])
    e3 = note.Note('E4', type='eighth')
    e4 = note.Note('E4', type='eighth')
    m.append([e3, e4])
    d1.beams.append('start')
    d2.beams.append('stop')
    self.assertTrue(m.streamStatus.haveBeamsBeenMade())
    mm = copy.deepcopy(m)
    self.assertTrue(mm.streamStatus.haveBeamsBeenMade())
    mm.streamStatus.beams = False
    mmm = copy.deepcopy(mm)
    self.assertFalse(mmm.streamStatus.beams)
    # m.show()