code: def execute(self):
          
          requests = self.requests[:]
  
          for r in requests:
              self.removeRequest(r)
  
          body = remoting.encode(self.getAMFRequest(requests),
              strict=self.strict)
  
          http_request = urllib2.Request(self._root_url, body.getvalue(),
              self._get_execute_headers())
  
          if self.proxy_args:
              http_request.set_proxy(*self.proxy_args)
  
          envelope = self._getResponse(http_request)
  
          return envelope
docs: Builds, sends and handles the responses to all requests listed in
          C{self.requests}.