Imports github.com/aws/aws-sdk-go-v2/aws github.com/aws/aws-sdk-go-v2/aws/signer/v4 github.com/aws/aws-sdk-go-v2/service/s3 github.com/aws/aws-sdk-go-v2/service/s3/types github.com/awsdocs/aws-doc-sdk-examples/gov2/testtools Standard library imports fmt io