question about manpage slapo-dynlist

Hi to all, the manpage of the slapo-dynlist is showing the following example: ----------- A dynamic group with dgIdentity authorization could be created with an entry like

dn: cn=Dynamic Group,ou=Groups,dc=example,dc=com objectClass: groupOfURLs objectClass: dgIdentityAux cn: Dynamic Group memberURL: ldap:///ou=People,dc=example,dc=com??sub?(objectClass=person) dgIdentity: cn=Group Proxy,ou=Services,dc=example,dc=com ----------- I can't find an explanation of the attribute "dgIdentity", it's not mentioned what is "cn=Group Proxy,ou=Services,dc=example,dc=com". Can someone explain it please. Stefan