module Docs  module Response    def success?      code == 200    end     def error?      code == 0 || code != 404 && code != 403 && code >= 400 && code <= 599    end     def blank?      body.blank?    end     def content_length      value = headers['Content-Length'] || '0'      value.to_i    end     def mime_type      headers['Content-Type'] || 'text/plain'    end     def html?      mime_type.include? 'html'    end     def url      @url ||= URL.parse request.base_url    end     def path      @path ||= url.path    end     def effective_url      @effective_url ||= URL.parse super    end     def effective_path      @effective_path ||= effective_url.path    end  endend