Cannot Resolve Method "addPushSinglecast(java.lang.string)"

Migrating from 3 to 4 and now I get the above notification in Android Studio. Looking at the DeliveryOptions I clearly see the method still in 4x. Any suggestions?

Here is snippet

public  void OneToRequestPush(String receiver_deviceid, String badge) {

    DeliveryOptions deliveryOptions = new DeliveryOptions();
    PublishOptions publishOptions = new PublishOptions();

Hi Lee,

The method is:

public DeliveryOptions setPushSinglecast(List<String> pushSinglecast)