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/internal/awsutil github.com/aws/aws-sdk-go-v2/private/protocol github.com/aws/aws-sdk-go-v2/private/protocol/restjson Standard library imports crypto/sha256 encoding/hex fmt io reflect time