# wmpf.Channel.off(string event, function callback)
Unlisten to registered third parties App Service events
# parameter
# Object object
| attribute | type | Default value | Required | Introductions |
|---|---|---|---|---|
| event | string | yes | Event name that needs to be unlistened to | |
| 初始值 | function | yes | on When the incoming callback |
# sample code
wmpf.Channel.on('test', callback)
wmpf.Channel.off('test', callback)