(io.Closer).Close
(*os.File).Close
fmt.Fprintf
fmt.Fprintln

(github.com/prometheus/alertmanager/vendor/github.com/go-kit/kit/log.Logger).Log
// Allowed log levels are enforced via kingpin
(*github.com/prometheus/alertmanager/vendor/github.com/prometheus/common/promlog.AllowedLevel).Set
// Generated via go-swagger
(*github.com/prometheus/alertmanager/api/v2/restapi.Server).Shutdown