numeraire.testing.check_engine_roundtrip# numeraire.testing.check_engine_roundtrip(estimator: Any, view_factory: Callable[[], Any], *, splitter: Any | None = None, min_train: int | None = None, forecast_kwargs: dict[str, Any] | None = None) → None[source]# The estimator runs through its matching walk-forward driver; result rows validate.