export declare class MeCab {
    private pointerKey;
    private state;
    private resolveInitialization;
    private rejectInitialization;
    private readonly initializationPromise;
    constructor();
    init(dictionaryDirectory: string): Promise<void>;
    tokenize(query: string): Promise<string>;
    dispose(): Promise<void>;
    private throwInit;
    private throwIfInvalidState;
    private existsAssets;
    private copyFileAssets;
}