KnownPollingIntervalInSeconds enum
轮询间隔（以秒为单位）。
字段
| Thirty = 30 | 30 pollingInterval InSeconds |
| Sixty = 60 | 60 pollingInterval InSeconds |
| Ninety = 90 | 90 轮询间隔秒 |
| OneTwenty = 120 | 120 polllingInterval InSeconds |
