def free_header
import bend-collections@1.0.0.0/src/containers/balanced_search_tree.bend as BalancedSearchTreeimport Base
284def free_header(~K: Data, ~V: Data, ~cmp: K -> K -> Cmp, m: TreeMap<K, V, cmp>, +free: Nat) -> TreeMap<K, V, cmp>:
285 TM{n, root, lo, hi, old, nodes, payloads} = m
286 TM{n, root, lo, hi, free, nodes, payloads}