pub trait ColumnEvaluations<F> {
type Column;
// Required method
fn evaluate(
&self,
col: Self::Column,
) -> Result<PointEvaluations<F>, ExprError<Self::Column>>;
}
pub trait ColumnEvaluations<F> {
type Column;
// Required method
fn evaluate(
&self,
col: Self::Column,
) -> Result<PointEvaluations<F>, ExprError<Self::Column>>;
}