Function polars_lazy::dsl::cumfold_exprs

pub fn cumfold_exprs<F, E>(acc: Expr, f: F, exprs: E, include_init: bool) -> Exprwhere
    F: 'static + Fn(Series, Series) -> Result<Series, PolarsError> + Send + Sync + Clone,
    E: AsRef<[Expr]>,

Available on crate feature dtype-struct only.

Accumulate over multiple columns horizontally / row wise.