@Override
  public @NotNull Iterable<LookupElement> classify(@NotNull Iterable<? extends LookupElement> source, @NotNull ProcessingContext context) {
    return liftShorterElements(source, null, context);
  }
@Override
  public @NotNull Iterable<LookupElement> classify(@NotNull Iterable<? extends LookupElement> source, @NotNull ProcessingContext context)