code: public boolean initSessionForced(BranchReferralInitListener callback) {
          enableForcedSession();
          if (initSession(callback, (Activity) null)) {
              processNextQueueItem();
              return true;
          }
          return false;
      }
docs: <p>Force initialises a session with the Branch API, assigning a {@link BranchReferralInitListener}
  to perform an action upon successful initialisation. Will not wait for new intent onResume.</p>
  
  @param callback A {@link BranchReferralInitListener} instance that will be called following
  successful (or unsuccessful) initialisation of the session with the Branch API.
  @return A {@link Boolean} value, indicating <i>false</i> if initialisation is
  unsuccessful.