How to use the @0xcert/ethereum-generic-provider.ProviderEvent.NETWORK_CHANGE function in @0xcert/ethereum-generic-provider

protected async installEvents() {

    const networkVersion = await this.getNetworkVersion();
    if (networkVersion !== this._networkVersion) {
      this.emit(ProviderEvent.NETWORK_CHANGE, networkVersion, this._networkVersion);
      this._networkVersion = networkVersion;
    }

    this.accountId = await this.getAvailableAccounts().then((a) => a[0]);

    setTimeout(() => this.installEvents(), 1000);
  }