BalancedSearchTree.nkey: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/containers/balanced_search_tree.bend as BalancedSearchTree
Lines 106-111 of bend-collections@1.0.0.0/src/containers/balanced_search_tree.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/containers/balanced_search_tree.bend&start_line=106&end_line=111

import Base

def nkey(~K: Data, n: Node<K>) -> Maybe<&2, K>:
  match n:
    case Free{x}:
      None{}
    case N{c, l, r, p, k}:
      Some{k}

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/containers/balanced_search_tree.bend&name=Node