@NonNull
    @Override
    public String toString() {
        if (toStringOverride != null) {
            return toStringOverride;
        }
        return "RxBlePhyOption{[CUSTOM] "
                + " value=" + value
                + '}';
    }
Used for user-friendly object toString()
rxandroidble/src/main/java/com/polidea/rxandroidble2/internal/RxBlePhyOptionImpl.java