void (@NotNull List<? super FoldingDescriptor> list, @NotNull PsiElement elementToFold, @NotNull Document document, boolean allowOneLiners, @NotNull String placeholder, @Nullable TextRange range, boolean isCollapsedByDefault) { if (range != null) { PsiUtilCore.ensureValid(elementToFold); addFoldRegion(list, elementToFold, document, allowOneLiners, range, placeholder, isCollapsedByDefault); } }