Functions
       netsnmp_mib_handler * netsnmp_get_scalar_group_handler (oid first, oid
           last)
       int netsnmp_register_scalar_group (netsnmp_handler_registration
           *reginfo, oid first, oid last)
       int netsnmp_scalar_group_helper_handler (netsnmp_mib_handler *handler,
           netsnmp_handler_registration *reginfo, netsnmp_agent_request_info
           *reqinfo, netsnmp_request_info *requests)

net-snmp 2scalar_group: process groups of scalars.(3)