def ns_set_left
import bend-collections@1.0.0.0/src/containers/balanced_search_tree.bend as BalancedSearchTreeimport Base
664def ns_set_left(~K: Data, s: NodeStore<K>, +i: Nat, +v: Nat) -> NodeStore<K>:
665 NS{limit, depth, cap, +used, tags, lefts, rights, parents, keys} = s
666 ns_set_left_ok(~K, limit, depth, cap, used, tags, lefts, rights, parents, keys, i, v, Nat.is_lt(i, used))