static @NotNull StickyLinesModelImpl getModel(@NotNull MarkupModel markupModel) {
    StickyLinesModelImpl stickyModel = markupModel.getUserData(STICKY_LINES_MODEL_KEY);
    if (stickyModel == null) {
      stickyModel = new StickyLinesModelImpl((MarkupModelEx) markupModel);
      markupModel.putUserData(STICKY_LINES_MODEL_KEY, stickyModel);
    }
    return stickyModel;
  }
static @NotNull StickyLinesModelImpl getModel(@NotNull MarkupModel markupModel)