Function diesel_ltree::subpath

pub fn subpath<ltree, offset, len>(
    ltree: ltree, 
    offset: offset, 
    len: len
) -> subpath<<ltree as AsExpression<Ltree>>::Expression, <offset as AsExpression<Int4>>::Expression, <len as AsExpression<Int4>>::Expression> where
    ltree: AsExpression<Ltree>,
    offset: AsExpression<Int4>,
    len: AsExpression<Int4>,