Script to scan host doesn't work

hi I'm using openvas that I installed on kali linux (installed on virtual box) ...

what i would like to do is scan my system .... i found this script, only once i give it the command to run it, which is suggested by the script itself, i get this:

usage: gvm-script [-h] [-c [CONFIG]] [--log [{DEBUG, INFO, WARNING, ERROR, CRITICAL}]] [--timeout TIMEOUT] [--gmp-username GMP_USERNAME]
                  [--gmp-password GMP_PASSWORD] [-V] [--protocol {GMP, OSP}]
                  CONNECTION_TYPE ...
gvm-script: error: the following arguments are required: CONNECTION_TYPE
unknown option - -
usage: ssh [-46AaCfGgKkMNnqsTtVvXxYy] [-B bind_interface]
           [-b bind_address] [-c cipher_spec] [-D [bind_address:] port]
           [-E log_file] [-e escape_char] [-F configfile] [-I pkcs11]
           [-i identity_file] [-J [user @] host [: port]] [-L address]
           [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port]
           [-Q query_option] [-R address] [-S ctl_path] [-W host: port]
           [-w local_tun [: remote_tun]] destination [command [argument ...]]

this is the script I used, found in the openVAS github page:

https://github.com/greenbone/gvm-tools/blob/main/scripts/scan-new-system.gmp.py

import datetime
import sys
from argparse import Namespace

from gvm.protocols.gmp import Gmp

def check_args(args):
    len_args = len(args.script) - 1
    message = """
        This script starts a new scan on the given host.
        It needs one parameters after the script name.
        1. <host_ip>        IP Address of the host system
        2. <port_list_id>   Port List UUID for scanning the host system. 
                            Preconfigured UUID might be under 
                            /var/lib/gvm/data-objects/gvmd/20.08/port_lists/. 
                            ex. iana-tcp-udp is 
                            "4a4717fe-57d2-11e1-9a26-406186ea4fc5".

                Example:
            $ gvm-script --gmp-username name --gmp-password pass \
ssh --hostname <gsm> scripts/scan-new-system.gmp.py <host_ip> <port_list_id>
    """
    if len_args != 2:
        print(message)
        sys.exit()

def create_target(gmp, ipaddress, port_list_id):
    # create a unique name by adding the current datetime
    name = f"Suspect Host {ipaddress} {str(datetime.datetime.now())}"

    response = gmp.create_target(
        name=name, hosts=[ipaddress], port_list_id=port_list_id
    )
    return response.get("id")

def create_task(gmp, ipaddress, target_id, scan_config_id, scanner_id):
    name = f"Scan Suspect Host {ipaddress}"
    response = gmp.create_task(
        name=name,
        config_id=scan_config_id,
        target_id=target_id,
        scanner_id=scanner_id,
    )
    return response.get("id")

def start_task(gmp, task_id):
    response = gmp.start_task(task_id)
    # the response is
    # <start_task_response><report_id>id</report_id></start_task_response>
    return response[0].text

def main(gmp: Gmp, args: Namespace) -> None:

    check_args(args)

    ipaddress = args.argv[1]
    port_list_id = args.argv[2]

    target_id = create_target(gmp, ipaddress, port_list_id)

    full_and_fast_scan_config_id = "daba56c8-73ec-11df-a475-002264764cea"
    openvas_scanner_id = "08b69003-5fc2-4037-a479-93b440211c73"
    task_id = create_task(
        gmp,
        ipaddress,
        target_id,
        full_and_fast_scan_config_id,
        openvas_scanner_id,
    )

    report_id = start_task(gmp, task_id)

    print(
        f"Started scan of host {ipaddress}. "
        f"Corresponding report ID is {report_id}"
    )

if __name__ == "__gmp__":
    # pylint: disable=undefined-variable
    main(gmp, args)

2 problems are also reported: "gmp" is not defined, ln87 "args" is not defined, ln87

can anyone please help me ?

greenbone / gvm-tools

Script to scan host doesn't work #800