How to use the pyhindsight.browsers.chrome.Chrome.AutofillItem function in pyhindsight

del(item['expires_utc'])
            # Convert these from 1/0 to true/false to match Plaso
            item['secure'] = 'true' if item['secure'] else 'false'
            item['httponly'] = 'true' if item['httponly'] else 'false'
            item['persistent'] = 'true' if item['persistent'] else 'false'

            item['message'] = u'{} ({}) Flags: [HTTP only] = {} [Persistent] = {}'.format(
                item['url'],
                item['cookie_name'],
                item['httponly'], item['persistent'])

            del(item['creation_utc'], item['last_access_utc'], item['row_type'],
                item['host_key'], item['name'], item['value'])
            return item

        if isinstance(obj, Chrome.AutofillItem):
            item = HindsightEncoder.base_encoder(obj)

            item['timestamp_desc'] = 'Used Time'
            item['data_type'] = 'chrome:autofill:entry'
            item['source_long'] = 'Chrome Autofill'
            item['usage_count'] = item['count']
            item['field_name'] = item['name']

            item['message'] = u'{}: {} (times used: {})'.format(
                item['field_name'], item['value'], item['usage_count'])

            del(item['name'], item['row_type'], item['count'], item['date_created'])
            return item

        if isinstance(obj, Chrome.BookmarkItem):
            item = HindsightEncoder.base_encoder(obj)