Function diesel_ltree::subltree

pub fn subltree<ltree, start, end>(
    ltree: ltree, 
    start: start, 
    end: end
) -> subltree<<ltree as AsExpression<Ltree>>::Expression, <start as AsExpression<Int4>>::Expression, <end as AsExpression<Int4>>::Expression> where
    ltree: AsExpression<Ltree>,
    start: AsExpression<Int4>,
    end: AsExpression<Int4>,