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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def parse_item(self, response):
 """ Get basic information about a page, so that it can be passed to the `pa11y` tool for further testing. @url https://www.google.com/ @returns items 1 1 @returns requests 0 0 @scrapes url request_headers accessed_at page_title """

        # if we got redirected to a login page, then login
        if URLObject(response.url).path == LOGIN_HTML_PATH:
            reqs = self.handle_unexpected_redirect_to_login_page(response)
            for req in reqs:
                yield req

        title = response.xpath("//title/text()").extract_first()
        if title:
            title = title.strip()

        # `response.request.headers` is a dictionary where the key is the
        # header name, and the value is a *list*, containing one item,
        # which is the header value. We need to get rid of this list, and just
        # have key-value pairs. (This list probably exists in case the same
        # header is sent multiple times, but that's not happening in this case,
        # and the list construct is getting in the way.)
        #
        # We also need to convert bytes to ASCII. In practice, headers can
        # only contain ASCII characters: see
        # http://stackoverflow.com/questions/5423223/how-to-send-non-english-unicode-string-using-http-header
        request_headers = {key.decode('ascii'): value[0].decode('ascii')
                           for key, value
                           in response.request.headers.items()}
        item = A11yItem(
            url=response.url,
            request_headers=request_headers,
            accessed_at=datetime.utcnow(),
            page_title=title,
        )
        yield item