def METHOD_NAME(self):
    ##in range
    self.assert_cmd('{"source": "lbl-pt1.es.net", "dest": "10.0.0.1", "bucket-width": 0.001}')
    ##out of range
    self.assert_cmd('{"source": "lbl-pt1.es.net", "dest": "10.0.0.1", "bucket-width": "blah"}', expected_valid=False)