def send_request(req, &block)
      @last_response = @http.request(req.delete(:method), req.delete(:uri), req, &block)
    end
def send_request(req, &block)
      @last_response = @http.request(req.delete(:method), req.delete(:uri), req, &block)
    end
Send request, and leave a reference to the response for debugging purposes