def __GENERATED__(self, t, obj, ctx, /):
    try:
        v_0 = method_map[t_dict, type(OBJ := obj['countries']), Context](self, dict1, OBJ, ctx)
        return World(v_0)
    except SerieuxError:
        raise
    except Exception as exc:
        raise ValidationError(exc=exc, ctx=ctx)
