def testEmpty(self):
        r = plivohelper.Response()
        r.append(plivohelper.GetDigits())
        r = self.strip(r)
        self.assertEquals(r, '<Response><GetDigits/></Response>')
a gather with nothing inside
dataset/ETHPy150Open plivo/plivohelper-python/tests/test_restxml.py/TestGetDigits.testEmpty