@NotNull
  @Override
  public StripTrailingSpacesFilter createFilter(@Nullable Project project, @NotNull Document document) {
    Language documentLanguage = PsiBasedStripTrailingSpacesFilter.getDocumentLanguage(document);
    if (documentLanguage != null && documentLanguage.is(MarkdownLanguage.INSTANCE)) {
      return StripTrailingSpacesFilter.NOT_ALLOWED;
    }
    return StripTrailingSpacesFilter.ALL_LINES;
  }
@NotNull
  @Override
  public StripTrailingSpacesFilter createFilter(@Nullable Project project, @NotNull Document document)