test = { 'name': 'q4_7',
'points': None,
'suites': [ { 'cases': [ {'code': '>>> isinstance(diff_lower_bound, float) and isinstance(diff_upper_bound, float)\nTrue', 'hidden': False, 'locked': False},
{'code': '>>> -1 <= diff_lower_bound <= diff_upper_bound <= 1\nTrue', 'hidden': False, 'locked': False}],
'scored': True,
'setup': '',
'teardown': '',
'type': 'doctest'}]}