```
# before
App.appearance = App.cable.subscriptions.create "AppearanceChannel",
connected: ->
# Called when the subscription is ready for use on the server
disconnected: ->
# Called when the subscription has been terminated by the server
received: (data) ->
# Called when there's incoming data on the websocket for this channel
appear: ->
@perform 'appear'
away: ->
@perform 'away'
```
```
# after
App.appearance = App.cable.subscriptions.create "AppearanceChannel",
connected: ->
# Called when the subscription is ready for use on the server
disconnected: ->
# Called when the subscription has been terminated by the server
received: (data) ->
# Called when there's incoming data on the websocket for this channel
appear: ->
@perform 'appear'
away: ->
@perform 'away'
```
