elper.createLogger("LoginManagerStorage");
  static #initializationPromise = null;

  static create(callback) {
    if (this.#initializationPromise) {
      this.#logger.log("json storage already initialized");
    } else {
      this.#jsonStorage = new LoginManagerStorage_json();
      this.#rustStorage = new LoginManagerRustStorage();

      this.#initializationPromise = this.#jsonStorage
        .initialize()
        .then(() => this.#rustStorage.initialize())
        .then(() => {
          new LoginManagerRustMirror(this.#jsonStorage, this.#rustStorage);
        });
    }

    this.#initializationPromise.then(() => callback?.());

    return this.#jsonStorage;
  }
}
PK