How to use the impacket.smbconnection.SMBConnection function in impacket

def create_connection(self):
        if self.dialects == smb.SMB_DIALECT:
            # Only for SMB1 let's do manualNego
            s = SMBConnection('*SMBSERVER', self.machine, preferredDialect = self.dialects, manualNegotiate=True)
            s.negotiateSession(self.dialects, flags2=self.flags2)
        else:
            s = SMBConnection('*SMBSERVER', self.machine, preferredDialect = self.dialects)
        return s

def _get_groupsxml(self, groupsxml_path, gpo_display_name):
        gpo_groups = list()

        content_io = StringIO()

        groupsxml_path_split = groupsxml_path.split('\\')
        gpo_name = groupsxml_path_split[6]
        target = self._domain_controller
        share = groupsxml_path_split[3]
        file_name = '\\'.join(groupsxml_path_split[4:])

        smb_connection = SMBConnection(remoteName=target, remoteHost=target)
        # TODO: kerberos login
        smb_connection.login(self._user, self._password, self._domain,
                             self._lmhash, self._nthash)

        smb_connection.connectTree(share)
        try:
            smb_connection.getFile(share, file_name, content_io.write)
        except SessionError:
            return list()

        content = content_io.getvalue().replace('\r', '')
        groupsxml_soup = BeautifulSoup(content, 'xml')

        for group in groupsxml_soup.find_all('Group'):
            members = list()
            memberof = list()

def initConnection(self):
        self.session = SMBConnection(self.targetHost, self.targetHost, sess_port= self.targetPort, manualNegotiate=True)
                                     #,preferredDialect=SMB_DIALECT)
        if self.serverConfig.smb2support is True:
            data = '\x02NT LM 0.12\x00\x02SMB 2.002\x00\x02SMB 2.???\x00'
        else:
            data = '\x02NT LM 0.12\x00'

        if self.extendedSecurity is True:
            flags2 = SMB.FLAGS2_EXTENDED_SECURITY | SMB.FLAGS2_NT_STATUS | SMB.FLAGS2_LONG_NAMES
        else:
            flags2 = SMB.FLAGS2_NT_STATUS | SMB.FLAGS2_LONG_NAMES
        try:
            packet = self.session.negotiateSessionWildcard(None, self.targetHost, self.targetHost, self.targetPort, 60, self.extendedSecurity,
                                                  flags1=SMB.FLAGS1_PATHCASELESS | SMB.FLAGS1_CANONICALIZED_PATHS,
                             flags2=flags2, data=data)
        except socketerror as e:
            if 'reset by peer' in str(e):

def check(self, remote_host):
        # Validate credentials first
        if not self.creds_validated:
            self.validate_creds(remote_host)
            self.creds_validated = True

        # Now start scanner
        try:
            smbClient = SMBConnection(remote_host, remote_host, sess_port=int(self.__port)) #, preferredDialect=SMB2_DIALECT_21
        except:
            return
        ntlm.computeResponseNTLMv2 = mod_computeResponseNTLMv2
        try:
            smbClient.login(self.__username, self.__password, self.__domain, self.__lmhash, self.__nthash)
            logging.info('Target %s is VULNERABLE to CVE-2019-1040 (authentication was accepted)', remote_host)
        except SessionError as exc:
            if 'STATUS_INVALID_PARAMETER' in str(exc):
                logging.info('Target %s is not vulnerable to CVE-2019-1040 (authentication was rejected)', remote_host)
            else:
                logging.warning('Unexpected Exception while authenticating to %s: %s', remote_host, exc)

        smbClient.close()

def getMachineName(self):
        if self.__kdcHost is not None:
            s = SMBConnection(self.__kdcHost, self.__kdcHost)
        else:
            s = SMBConnection(self.__domain, self.__domain)
        try:
            s.login('', '')
        except Exception:
            if s.getServerName() == '':
                raise Exception('Error while anonymous logging into %s')
        else:
            s.logoff()
        return s.getServerName()

def getMachineName(machineIP):
        s = SMBConnection(machineIP, machineIP)
        try:
            s.login('','')
        except Exception:
            logging.debug('Error while anonymous logging into %s' % machineIP)
        else:
            s.logoff()
        return s.getServerName()

def connector(target, args, db, module, context, cmeserver):

    try:

        smb = SMBConnection(target, target, None, args.smb_port)

        #Get our IP from the socket
        local_ip = smb.getSMBServer().get_socket().getsockname()[0]

        #Get the remote ip address (in case the target is a hostname) 
        remote_ip = smb.getRemoteHost()

        try:
            smb.login('' , '')
        except SessionError as e:
            if "STATUS_ACCESS_DENIED" in e.message:
                pass

        domain     = smb.getServerDomain()
        servername = smb.getServerName()
        serveros   = smb.getServerOS()

def connect_transferClient(self):
        self.transferClient = SMBConnection('*SMBSERVER', self.server.getRemoteHost(), sess_port=self.port,
                                            preferredDialect=dialect)
        user, passwd, domain, lm, nt, aesKey, TGT, TGS = self.credentials
        self.transferClient.kerberosLogin(user, passwd, domain, lm, nt, aesKey, TGS=self.TGS, useCache=False)

    def create_connection(self, klass=SMBConnection):
        try:
            smb = klass(self.host, self.host, None, self.port, timeout=self.timeout)

            if self.kerberos:
                smb.kerberos_login(
                    self.user, self.password,
                    self.domain, self.lm, self.nt,
                    self.aes, self.KDC, self.TGT, self.TGS)
            else:
                smb.login(self.user, self.password, self.domain, self.lm, self.nt)

            self.valid = True

            user_key = self.user
            if self.domain:
                user_key = self.domain + '\\' + self.user

def connectPipe(self):
        try:
            lock.acquire()
            global dialect
            self.server = SMBConnection('*SMBSERVER', self.transport.get_smb_connection().getRemoteHost(),
                                        sess_port=self.port, preferredDialect=dialect)
            user, passwd, domain, lm, nt, aesKey, TGT, TGS = self.credentials
            self.server.login(user, passwd, domain, lm, nt)
            lock.release()
            self.tid = self.server.connectTree('IPC$') 

            self.server.waitNamedPipe(self.tid, self.pipe)
            self.fid = self.server.openFile(self.tid,self.pipe,self.permissions, creationOption = 0x40, fileAttributes = 0x80)
            self.server.setTimeout(1000000)
        except:
            logging.critical("Something wen't wrong connecting the pipes(%s), try again" % self.__class__)