public void getAllQuagganID(Callback<List<String>> callback) throws NullPointerException {
		gw2API.getAllQuagganIDs().enqueue(callback);
	}
public void getAllQuagganID ( Callback < List < String > > callback ) throws NullPointerException { gw2API . getAllQuagganIDs ( ) . enqueue ( callback ) ; }
For more info on quaggans API go <a href="https://wiki.guildwars2.com/wiki/API:2/quaggans">here</a><br/>
Give user the access to {@link Callback#onResponse(Call, Response)} and {@link Callback#onFailure(Call, Throwable)} methods for custom interactions

@param callback callback that is going to be used for {@link Call#enqueue(Callback)}
@throws NullPointerException if given {@link Callback} is empty