@ApiStatus.Internal
  public void decorateTailItemTextRange(@NotNull TextRange textRange, @NotNull LookupItemDecoration decoration) {
    ensureMutable();
    if (myItemTailDecorations == null) {
      myItemTailDecorations = new SmartList<>();
    }
    myItemTailDecorations.add(new DecoratedTextRange(textRange, decoration));
  }
@ApiStatus.Internal
  public void decorateTailItemTextRange(@NotNull TextRange textRange, @NotNull LookupItemDecoration decoration)