docs: def from_response(response):
          """Creates a WARCRecord from given response object.
  
          This must be called before reading the response. The response can be 
          read after this method is called.
          
          :param response: An instance of :class:`requests.models.Response`.
          """
          # Get the httplib.HTTPResponse object
          http_response = response.raw._original_response
          
          # HTTP status line, headers and body as strings
          status_line = "HTTP/1.1 %d %s" % (http_response.status, http_response.reason)
          headers = str(http_response.msg)
          body = http_response.read()
  
          # Monkey-patch the response object so that it is possible to read from it later.
          response.raw._fp = StringIO(body)
  
          # Build the payload to create warc file.
          payload = status_line + "\r\n" + headers + "\r\n" + body
          
          headers = {
              "WARC-Type": "response",
              "WARC-Target-URI": response.request.full_url.encode('utf-8')
          }
          return WARCRecord(payload=payload, headers=headers)