code: def get_ldap_groups(self):
          
          if (not self.conf_LDAP_SYNC_GROUP):
              return (None, None)
          uri_groups_server, groups = self.ldap_search(self.conf_LDAP_SYNC_GROUP_FILTER, self.conf_LDAP_SYNC_GROUP_ATTRIBUTES.keys(), self.conf_LDAP_SYNC_GROUP_INCREMENTAL, self.conf_LDAP_SYNC_GROUP_FILTER_INCREMENTAL)
          logger.debug("Retrieved %d groups from %s LDAP server" % (len(groups), uri_groups_server))
          return (uri_groups_server, groups)
docs: Retrieve groups from LDAP server.