{'': {'pick': 'unique'}, 'CN': {'pick': 'first', 'filters': ['keep_ldap']}, 'NAME': {'pick': 'first', 'filters': ['keep_ldap']}, 'OBJECTCATEGORY': {'pick': 'unique', 'filters': ['keep_ldap']}, 'SAMACCOUNTNAME': {'pick': 'first', 'filters': ['keep_ldap']}, 'USERPRINCIPALNAME': {'pick': 'first', 'filters': ['keep_ldap']}, 'SCHACEXPIRYDATE': {'pick': 'first', 'order': '${account_expires_iso}'}, 'PHYSICALDELIVERYOFFICENAME': {'pick': 'last', 'order': '${dataset__source}'}, 'EDUPERSONPRINCIPALNAME': {'pick': 'last'}, 'TELEPHONENUMBER': {'order': '${dataset__source}', 'pick': 'first'}, 'PROXYADDRESSES': {'pick': 'distinct', 'filters': ['keep_ldap']}, 'TARGETADDRESS': {'order': '${dataset__source}', 'pick': 'first', 'filters': ['keep_ldap']}, 'MAIL': {'order': '${dataset__source}', 'pick': 'first', 'filters': ['keep_ldap']}}