It’s mentioned in the blog the article links to. https://aws.amazon.com/blogs/aws/improve-your-app-authentication-workflow-with-new-amazon-cognito-features/ ht

It’s mentioned in the blog the article links to. https://aws.amazon.com/blogs/aws/improve-your-app-authentication-workflow-with-new-amazon-cognito-features/ https://aws.amazon.com/blogs/aws/improve-your-app-authentica...