@Nullable
    public Bundle toBundle() {
        return null;
    }
Returns the created options as a Bundle, which can be passed to
{@link ContextCompat#startActivity(Context, android.content.Intent, Bundle)}.
Note that the returned Bundle is still owned by the ActivityOptions
object; you must not modify it, but can supply it to the startActivity
methods that take an options Bundle.
android/android_framework/base/src/main/java/github/tornaco/android/thanos/core/compat/ActivityOptionsCompat.java