Go logging library for GCP App Engine, Cloud Run, Cloud Functions:

• Encodes the severities so that coloring works in the Google web-based Logs Explorer.
• Zero dependencies, it is a stdlib-only module. Nul, zilch, nada!
• Safe for concurrent logging.
• Backward compatible with older Go versions as far as 1.9.4.

package main

import "github.com/apsystole/log"

func main() {
    log.Print("my message")
}

More details to be found in the documentation on pkg.go.dev.