def METHOD_NAME(self, parser):
    parser.add_argument(
        '-d', '--dc-name',
        default='dc1',
        dest='dc_name',
        help='Data center name.'
    )
    parser.add_argument(
        '-s', '--server-room-name',
        default='server room',
        dest='server_room_name',
        help='Server room name.'
    )
    parser.add_argument(
        '-p', '--parent-network',
        default='10.0.0.0/16',
        dest='parent_network',
        help='Parent network address.'
    )
    parser.add_argument(
        '--dns1',
        default='10.0.0.11',
        dest='dns_1',
        help='Primary DNS server.'
    )
    parser.add_argument(
        '--dns2',
        default='10.0.0.12',
        dest='dns_2',
        help='Secondary DNS server.'
    )
    parser.add_argument(
        '-n', '--number-of-subnets',
        default='3',
        dest='number_of_subnets',
        help='Number of /24 subnets to be generated.'
    )
    parser.add_argument(
        '-r', '--region',
        default='PL',
        dest='region',
        help='Geographical region (eg. your location).'
    )
    parser.add_argument(
        '-c', '--configuration-path',
        default='configuration_module/default',
        dest='configuration_path',
        help='Default configuration path.'
    )