import { NonLeafTree } from "https://deno.land/x/rimbu@0.14.1/list/custom/implementation/nonleaf/nonleaf-tree.ts";
Module
x/rimbu/list/custom/implementation/nonleaf/nonleaf-tree.ts>NonLeafTree#mapPure
Rimbu is a TypeScript library focused on immutable, performant, and type-safe collections and other tools.