@NotNull
  public Aligner createAligner(PsiElement element, boolean allowBackwardShift, Alignment.Anchor anchor) {
    final Aligner aligner = new Aligner(allowBackwardShift, anchor);
    aligner.append(element);
    return aligner;
  }
@NotNull
  public Aligner createAligner(PsiElement element, boolean allowBackwardShift, Alignment.Anchor anchor)