No, that is for generating the Unsubscribe buttons in the email client itself. They also require a link in the body itself. From the google doc: Marketing me

No, that is for generating the Unsubscribe buttons in the email client itself. They also require a link in the body itself. From the google doc: Marketing messages and subscribed messages must support one-click unsubscribe, and include a clearly visible unsubscribe link in the message body.