async hasPreviouslySynced(): Promise<boolean> {
		await this.checkEnablement();
		for (const synchroniser of this.synchronisers) {
			if (await synchroniser.hasPreviouslySynced()) {
                             // Shouldn't there be a return true here?
			}
		}
		return false;
	}

	private async hasLocalData(): Promise<boolean> {
		await this.checkEnablement();
		for (const synchroniser of this.synchronisers) {
			if (await synchroniser.hasLocalData()) {
                             // Shouldn't there be a return true here?
			}
		}
		return false;
	}