def set_ends
import bend-collections@1.0.0.0/src/containers/balanced_search_tree.bend as BalancedSearchTreeimport Base
326def set_ends(~K: Data, ~V: Data, ~cmp: K -> K -> Cmp, m: TreeMap<K, V, cmp>, +lo: Nat, +hi: Nat) -> TreeMap<K, V, cmp>:
327 TM{n, root, oldlo, oldhi, free, nodes, payloads} = m
328 TM{n, root, lo, hi, free, nodes, payloads}