Imports go.opentelemetry.io/otel go.opentelemetry.io/otel/codes go.opentelemetry.io/otel/trace go.opentelemetry.io/otel/attribute golang.org/x/crypto/ssh Standard library imports bytes context crypto/ecdsa crypto/elliptic crypto/rand crypto/x509 encoding/pem fmt io net os path/filepath strings time log/slog