def METHOD_NAME():
    rk = utils.required_key
    _dict = {'something': 'some_value',
             'something_else': 'other_value'}
    assert rk(_dict, 'something') == 'some_value'
    assert rk(_dict, 'something_else') == 'other_value'
    with pytest.raises(ValueError):
        rk(_dict, 'not-in-dict')