docs: protected IPreferenceStoreAccess getPreferenceStoreAccess() {
  		if (this.preferenceStoreAccess == null) {
  			final Injector injector = LangActivator.getInstance().getInjector(LangActivator.IO_SARL_LANG_SARL);
  			this.preferenceStoreAccess = injector.getInstance(IPreferenceStoreAccess.class);
  		}
  		return this.preferenceStoreAccess;
  	}