Imports github.com/pkg/sftp github.com/aws/aws-sdk-go-v2/config github.com/aws/aws-sdk-go-v2/service/sts github.com/aws/aws-sdk-go-v2/credentials github.com/aws/aws-sdk-go-v2/service/s3 github.com/aws/aws-sdk-go-v2/aws golang.org/x/crypto/ssh Standard library imports bytes context crypto/rand crypto/rsa crypto/x509 encoding/pem fmt io net os os/signal path/filepath strconv strings sync syscall time log/slog