def unbox_usecase4(x):
    a, b = x
    res = a
    for v in b:
        res += len(v)
    return res
QListInterpolationEditor(param_info: ParameterInfo, parent: QWidget)
dataset/ETHPy150Open numba/numba/numba/tests/test_sets.py/unbox_usecase4--crossover with--dataset/ETHPy150Open VisTrails/VisTrails/vistrails/gui/modules/paramexplore.py/QListInterpolationEditor.__init__