@Override
        public String getName() { return "cas-group-attribute"; }
The name of the CAS attribute used for group membership, such as
"memberOf". This attribute is case sensitive.
extensions/guacamole-auth-sso/modules/guacamole-auth-sso-cas/src/main/java/org/apache/guacamole/auth/cas/conf/CASGuacamoleProperties.java