@Override
  public String toString() {
    StringBuilder text = new StringBuilder();
    for (Fragment fragment : myPrimaryColumn.fragments) {
      if (!text.isEmpty()) text.append("\n");
      text.append(fragment.myComponent);
    }
    for (Fragment fragment : mySecondaryColumn.fragments) {
      if (!text.isEmpty()) text.append("\n");
      text.append(fragment.myComponent);
    }
    return text.toString();
  }
@Override
  public String toString()