def push_all_device(message_type, message, params = {})
      params.merge!({
        message_type: message_type,
        message: message
        })
      self.send_request('push','all_device',params)
    end
def push_all_device(message_type, message, params = {})
      params.merge!({
        message_type: message_type,
        message: message
        })
      self.send_request('push','all_device',params)
    end
push消息（包括通知和透传消息）给app的所有设备