/**
* Load the booster model from thread-local rabit checkpoint. This is only used in distributed
* training.
*
* @return the stored version number of the checkpoint.
* @throws XGBoostError
*/
int loadRabitCheckpoint() throws XGBoostError {
int[] out = new int[1];
JNIErrorHandle.checkCall(XgboostJNI.XGBoosterLoadRabitCheckpoint(this.handle, out));
return out[0];
}
