How to use the tldextract.tldextract.pkg_resources function in tldextract

raw_suffix_list_data = fetch_file(self.suffix_list_urls)
            tlds = get_tlds_from_raw_suffix_list_data(raw_suffix_list_data)

        if not tlds:
            if self.fallback_to_snapshot:
                with closing(pkg_resources.resource_stream(__name__, '.tld_set_snapshot')) as snapshot_file:
                    self._extractor = _PublicSuffixListTLDExtractor(pickle.load(snapshot_file))
                    return self._extractor
            else:
                raise Exception("tlds is empty, but fallback_to_snapshot is set"
                                " to false. Cannot proceed without tlds.")

        LOG.info("computed TLDs: [%s, ...]", ', '.join(list(tlds)[:10]))
        if LOG.isEnabledFor(logging.DEBUG):
            import difflib
            with closing(pkg_resources.resource_stream(__name__, '.tld_set_snapshot')) as snapshot_file:
                snapshot = sorted(pickle.load(snapshot_file))
            new = sorted(tlds)
            for line in difflib.unified_diff(snapshot, new, fromfile=".tld_set_snapshot", tofile=self.cache_file):
                if sys.version_info < (3,):
                    sys.stderr.write(line.encode('utf-8') + "\n")
                else:
                    sys.stderr.write(line + "\n")

        if self.cache_file:
            try:
                with open(self.cache_file, 'wb') as f:
                    pickle.dump(tlds, f)
            except IOError as e:
                LOG.warn("unable to cache TLDs in file %s: %s", self.cache_file, e)

        self._extractor = _PublicSuffixListTLDExtractor(tlds)