I should have been a bit more specific.  Sorry for the added email.  I am able to get the objectGUID but need to present it in the SAML assertion between {} brackets.  I am getting the string I need without the brackets.  How can I setup the mapper to append the brackets.

From: keycloak-user-bounces@lists.jboss.org [mailto:keycloak-user-bounces@lists.jboss.org] On Behalf Of Ben Bazian
Sent: Monday, February 29, 2016 1:40 PM
To: 'keycloak-user@lists.jboss.org' <keycloak-user@lists.jboss.org>
Subject: [keycloak-user] SAML Mapper for ObjectGUID

I need to pass the objectGUID from Active Directory in a SAML assertion.  Anyone know where to point me to setting up this mapper?