public void writeToParcel(@NonNull Parcel dest, int flags) {
        super.writeToParcel(dest, flags);
        dest.writeInt(mNumberGapWidth);
        dest.writeString(mNumber);
    }
Class to use Numbered Lists in TextViews.
The span works the same as {@link BulletSpan} and all lines of the entry have
the same leading margin.
android/modules/module_common/src/main/java/github/tornaco/android/thanos/widget/html/NumberSpan.java