import { WILDCARD } from '../utils/trie';
export default class ExactMatcher {
    private _btrie;
    private _trie;
    constructor();
    clear(): void;
    private _createTrie;
    [Symbol.iterator](): IterableIterator<[Array<string | typeof WILDCARD>, string]>;
    load(filename: string): Promise<void>;
    add(utterance: string[], target_code: string[]): void;
    get(utterance: string[]): string[][] | null;
}