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/feature/s3/manager github.com/aws/aws-sdk-go-v2/service/s3 Standard library imports bytes context crypto/sha256 encoding/csv encoding/hex encoding/json fmt io io/ioutil net/http net/url os path/filepath sort strconv strings time