WARNING: C:/Users/Administrator/workspace/xgboost-win64_release_1.3.0/src/learner.cc:541: Parameters: { xgb_model } might not be used

Question

I want to do Incremental Learning using XGBClassifier. I found xgb_model parameter of XGB can achieve this.

As a 1st Step, I trained XGB Classifier on 1st Data Set. It tr