text: """
  Module containing all HTTP related classes
  
  Use this module (instead of the more specific ones) when importing Headers,
  Request and Response outside this module.
  """
  
  from scrapy.http.headers import Headers
  
  from scrapy.http.request import Request
  from scrapy.http.request.form import FormRequest
  from scrapy.http.request.rpc import XmlRpcRequest
  from scrapy.http.request.json_request import JSONRequest
  
  from scrapy.http.response import Response
  from scrapy.http.response.html import HtmlResponse
  from scrapy.http.response.xml import XmlResponse
  from scrapy.http.response.text import TextResponse
  