Imports github.com/aws/aws-sdk-go/aws/awsutil github.com/aws/aws-sdk-go/aws/client github.com/aws/aws-sdk-go/aws/client/metadata github.com/aws/aws-sdk-go/aws/request github.com/aws/aws-sdk-go/private/signer/v4 github.com/aws/aws-sdk-go/private/protocol/restxml Standard library imports regexp time