method BSTree.prototype.nlrValuesRe-exportimport { BSTree } from "https://deno.land/std@0.133.0/collections/mod.ts"; nlrValues(): IterableIterator<T>Returns an iterator that uses pre-order (NLR) tree traversal for retrieving values from the binary search tree. Returns an iterator that uses pre-order (NLR) tree traversal for retrieving values from the binary search tree. ReturnsIterableIterator<T>