Refactor #702

Job	Run time
Detect Changes	7s
constantpredictor/iris	26s
constantpredictor/kc2	23s
constantpredictor/cholesterol	22s
randomforest/iris	48s
randomforest/kc2	1m 1s
randomforest/cholesterol	50s
autogluon/iris	17s
autogluon/kc2	15s
autogluon/cholesterol	13s
autogluon/iris	12s
autogluon/kc2	13s
autogluon/cholesterol	14s
autosklearn/iris	14s
autosklearn/kc2	12s
autosklearn/cholesterol	12s
gama/iris	13s
gama/kc2	12s
gama/cholesterol	12s
h2oautoml/iris	9s
h2oautoml/kc2	14s
h2oautoml/cholesterol	11s
mlplanweka/iris	13s
mlplanweka/kc2	11s
mlplanweka/cholesterol	12s
mlr3automl/iris	12s
mlr3automl/kc2	10s
mlr3automl/cholesterol	13s
naiveautoml/iris	1s
naiveautoml/kc2	1s
naiveautoml/cholesterol	11s
tpot/iris	1s
tpot/kc2	1s
tpot/cholesterol	1s
tunedrandomforest/iris	1s
tunedrandomforest/kc2	1s
tunedrandomforest/cholesterol	1s
	8m 40s

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