func Mustenv(names ...string) {
	for _, name := range names {
		if os.Getenv(name) == "" {
			panic(fmt.Errorf("missing required environment variable: %v", name))
		}
	}
}
Mustenv ensures an environment variable is set and panics if it is not.
package lambdautils
import (
	"fmt"
	"os"
)
const EnvQueueURL = "QUEUE_URL"