def before_load(self, todo):
        assert callable(todo)
        self.loader.before_load_handlers.append(todo)
Convert an ndarray to VARIANT_dtype array
dataset/ETHPy150Open lsaffre/lino/lino/utils/dpy.py/Migrator.before_load--crossover with--dataset/ETHPy150Open enthought/comtypes/comtypes/safearray.py/_ndarray_to_variant_array