def insert_fixed
import bend-collections@1.0.0.0/src/containers/balanced_search_tree.bend as BalancedSearchTreeimport Base
1641def insert_fixed(~K: Data, ~V: Data, ~cmp: K -> K -> Cmp, +id: Nat, r: TreeMap<K, V, cmp> & Nat) -> TreeMap<K, V, cmp>:
1642 (m, n) = r
1643 insert_fix_loop(~K, ~V, ~cmp, 1n+n, (m, Fix{id, True{}}))