def ascend_side
import bend-collections@1.0.0.0/src/containers/balanced_search_tree.bend as BalancedSearchTreeimport Base
815def ascend_side(~K: Data, ~V: Data, ~cmp: K -> K -> Cmp, +x: Nat, +p: Nat, +i: Nat, r: NodeStore<K> & Nat) -> NodeStore<K> & Ascend:
816 (nodes, +s) = r
817 ascend_par(~K, ~V, ~cmp, x, p, s, ns_parent_at(~K, nodes, i))