How to use the webtech.database.WAPPALYZER_DATABASE_FILE function in webtech

# Burp WebTech Extension

from burp import (IBurpExtender, IScannerCheck, IScanIssue, ITab)
from java.net import URL
from javax.swing import (GroupLayout, JPanel, JCheckBox, JButton)
import pickle
import json
from webtech import WebTech
from webtech.utils import UpdateInBurpException
from webtech.database import save_database_file, WAPPALYZER_DATABASE_URL, WAPPALYZER_DATABASE_FILE, WEBTECH_DATABASE_URL, DATABASE_FILE
from webtech.__version__ import __version__ as VERSION

issueTypeWebTech = 3933012
issueNameWebTech = "Detected some technologies in use"

databases = [(WAPPALYZER_DATABASE_URL, WAPPALYZER_DATABASE_FILE), (WEBTECH_DATABASE_URL, DATABASE_FILE)]

class BurpExtender(IBurpExtender, IScannerCheck, IScanIssue, ITab):
    def registerExtenderCallbacks(self, callbacks):
        self.callbacks = callbacks
        self.helpers = callbacks.getHelpers()
        callbacks.setExtensionName("WebTech")
        self.out = callbacks.getStdout()
        self.callbacks.printOutput("Sucessfully loaded WebTech {}".format(VERSION))

        try:
            self.webtech = WebTech(options={'json': True})
        except UpdateInBurpException as e:
            #self.callbacks.printOutput(e)
            for db_file in databases:
                db = self.callbacks.makeHttpRequest(
                    'raw.githubusercontent.com', # we are hardcoding this since there isn't a nice api for that

def __init__(self, options=None):
        if not BURP:
            update = False if options is None else options.get('update_db', False)
            database.update_database(force=update)

        with open(database.WAPPALYZER_DATABASE_FILE) as f:
            self.db = json.load(f)
        with open(database.DATABASE_FILE) as f:
            self.db = database.merge_databases(self.db, json.load(f))

        # Output text only
        self.output_format = Format['text']

        # Default user agent
        self.USER_AGENT = default_user_agent()

        if options is None:
            return
        self.scrape_url = options.get('scrape')

        if options.get('database_file'):
            try:

def __init__(self, options=None):
        if not BURP:
            update = False if options is None else options.get('update_db', False)
            database.update_database(force=update)

        with open(database.WAPPALYZER_DATABASE_FILE) as f:
            self.db = json.load(f)
        with open(database.DATABASE_FILE) as f:
            self.db = database.merge_databases(self.db, json.load(f))

        # Output text only
        self.output_format = Format['text']

        # Default user agent
        self.USER_AGENT = default_user_agent()

        if options is None:
            return

        if options.get('database_file'):
            try:
                with open(options.get('database_file')) as f: