private @Nullable Object getSlowData(@NotNull String dataId) {
    if (UsageView.USAGE_INFO_KEY.is(dataId)) {
      PsiElement element = getElement();
      if (element != null && element.getTextRange() != null) {
        return new UsageInfo(element);
      }
    }
    return null;
  }
private @Nullable Object getSlowData(@NotNull String dataId)