fix bengio model #38

Job	Run time
Test (3.12)	48s
deploy / Setup	34s
deploy / deploy-production	0s
deploy / deploy-staging / build-gcp	-1s
deploy / deploy-staging / build-aws / Build (staging)	1m 39s
deploy / deploy-staging / deploy-gcp-staging	0s
deploy / deploy-staging / deploy-staging-aws / Deploy (staging)	6s
	3m 6s

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