How to use the ssh-audit.SSH.Product.LibSSH function in ssh-audit

def get_alg_since_text(versions):
	# type: (List[str]) -> text_type
	tv = []
	if len(versions) == 0 or versions[0] is None:
		return None
	for v in versions[0].split(','):
		ssh_prefix, ssh_version = get_ssh_version(v)
		if not ssh_version:
			continue
		if ssh_prefix in [SSH.Product.LibSSH]:
			continue
		if ssh_version.endswith('C'):
			ssh_version = '{0} (client only)'.format(ssh_version[:-1])
		tv.append('{0} {1}'.format(ssh_prefix, ssh_version))
	if len(tv) == 0:
		return None
	return 'available since ' + ', '.join(tv).rstrip(', ')

def get_ssh_version(version_desc):
	# type: (str) -> Tuple[str, str]
	if version_desc.startswith('d'):
		return (SSH.Product.DropbearSSH, version_desc[1:])
	elif version_desc.startswith('l1'):
		return (SSH.Product.LibSSH, version_desc[2:])
	else:
		return (SSH.Product.OpenSSH, version_desc)

if mx:
				patch = cls._fix_patch(mx.group(2))
				v, p = 'Matt Johnston', SSH.Product.DropbearSSH
				v = None
				return cls(v, p, mx.group(1), patch, None)
			mx = re.match(r'^OpenSSH[_\.-]+([\d\.]+\d+)(.*)', software)
			if mx:
				patch = cls._fix_patch(mx.group(2))
				v, p = 'OpenBSD', SSH.Product.OpenSSH
				v = None
				os_version = cls._extract_os_version(banner.comments)
				return cls(v, p, mx.group(1), patch, os_version)
			mx = re.match(r'^libssh-([\d\.]+\d+)(.*)', software)
			if mx:
				patch = cls._fix_patch(mx.group(2))
				v, p = None, SSH.Product.LibSSH
				os_version = cls._extract_os_version(banner.comments)
				return cls(v, p, mx.group(1), patch, os_version)
			mx = re.match(r'^RomSShell_([\d\.]+\d+)(.*)', software)
			if mx:
				patch = cls._fix_patch(mx.group(2))
				v, p = 'Allegro Software', 'RomSShell'
				return cls(v, p, mx.group(1), patch, None)
			mx = re.match(r'^mpSSH_([\d\.]+\d+)', software)
			if mx:
				v, p = 'HP', 'iLO (Integrated Lights-Out) sshd'
				return cls(v, p, mx.group(1), None, None)
			mx = re.match(r'^Cisco-([\d\.]+\d+)', software)
			if mx:
				v, p = 'Cisco', 'IOS/PIX sshd'
				return cls(v, p, mx.group(1), None, None)
			return None