import { TrieNode } from './TrieNode';
import { TrieRefNode } from './trieRef';
/**
 * An iterator that will emit TrieRefNodes mostly in descending frequency
 * @param root Root of the Trie -- a DAWG is preferred to keep the number of duplicates down.
 */
export declare function convertToTrieRefNodes(root: TrieNode): IterableIterator<TrieRefNode>;
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