get_bulk (SNMP::Manager)

    # File lib/snmp/manager.rb, line 248
        def get_bulk(non_repeaters, max_repetitions, object_list)
            varbind_list = @mib.varbind_list(object_list, :NullValue)
            request = GetBulkRequest.new(
                    @@request_id.next,
                    varbind_list,
                    non_repeaters,
                    max_repetitions)
            try_request(request)
        end