mem diag update and add alloc_once #23

Job	Run time
Test (3.12)	16s
Deploy to Lambda Feedback / Setup	34s
Build Docker Image / Build and Push Docker Image	1m 56s
Deploy to Lambda Feedback / build-gcp	0s
Deploy to Lambda Feedback / build-aws (staging) / Build (staging)	1m 48s
Deploy to Lambda Feedback / build-aws (production) / Build (production)	1m 49s
Deploy to Lambda Feedback / deploy-gcp-production	0s
Deploy to Lambda Feedback / deploy-gcp-staging	0s
Deploy to Lambda Feedback / deploy-production-aws / Deploy (production)	12s
Deploy to Lambda Feedback / deploy-staging-aws / Deploy (staging)	11s
	6m 46s

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