code: def on_run_end(self):
      print("on_run_end", self._rep, self._fold, self._run)
  
file_path: hyperparameter_hunter/tests/integration_tests/test_lambda_callback.py
imports: from hyperparameter_hunter import Environment, CVExperiment, lambda_callback
  from hyperparameter_hunter.callbacks.bases import BaseCallback
  from hyperparameter_hunter.callbacks.recipes import confusion_matrix_oof
  from hyperparameter_hunter.utils.learning_utils import get_diabetes_data
  from copy import deepcopy
  import pytest
  from sklearn.ensemble import AdaBoostRegressor
label_desc: Use image node_id 2 for calling the DummyLambdaCallbackClass obj's underlying member method code with example usage: obj.on_run_end() without return types