public InviteMembersRequest withMessage(String message) {
        setMessage(message);
        return this;
    }
<p>
The invitation message that you want to send to the accounts that you're inviting to GuardDuty as members.
</p>

@param message
       The invitation message that you want to send to the accounts that you're inviting to GuardDuty as members.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-guardduty/src/main/java/com/amazonaws/services/guardduty/model/InviteMembersRequest.java