Refactor #704

Job	Run time
Detect Changes	6s
constantpredictor/iris	24s
constantpredictor/kc2	22s
constantpredictor/cholesterol	30s
randomforest/iris	55s
randomforest/kc2	54s
randomforest/cholesterol	54s
autogluon/iris	1m 25s
autogluon/kc2	1m 34s
autogluon/cholesterol	1m 34s
autogluon/iris	28s
autogluon/kc2	28s
autogluon/cholesterol	29s
autosklearn/iris	28s
autosklearn/kc2	28s
autosklearn/cholesterol	28s
gama/iris	28s
gama/kc2	28s
gama/cholesterol	28s
h2oautoml/iris	28s
h2oautoml/kc2	28s
h2oautoml/cholesterol	27s
mlplanweka/iris	14s
mlplanweka/kc2	12s
mlplanweka/cholesterol	12s
mlr3automl/iris	13s
mlr3automl/kc2	16s
mlr3automl/cholesterol	12s
naiveautoml/iris	28s
naiveautoml/kc2	1s
naiveautoml/cholesterol	14s
tpot/iris	1s
tpot/kc2	1s
tpot/cholesterol	1s
tunedrandomforest/iris	1s
tunedrandomforest/kc2	1s
tunedrandomforest/cholesterol	1s
	16m 22s

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