Return: Quiz IV in Go

Quiz: What would this code produce if we were to copy-paste it in a code editor and run it?

func greetAndReturn() string {
    return "How are you doing?"
    fmt.Println("Hey bro!")
    return "Bye!"
}

func mainFunction() {
    question := greetAndReturn()
    fmt.Println(question)
}

Important Note:

Do not use an actual code editor to get the answer. It would defeat the purpose of the quiz.