So I've read the document: https://aws.amazon.com/tw/blogs/compute/resize-images-on-the-fly-with-amazon-s3-aws-lambda-and-amazon-api-gateway/
In the step To create the Lambda function 1. In the Lambda console, choose Create a Lambda function, Blank Function.
I go to AWS Lambda page, it asks me to choose a blueprint to create one, anyone knows which one I should choose?