```coffeescript
Ripper = require './ripper'
NotificationView = require './notification-view'

{ packages: packageManager } = atom

module.exports =
  activate: ->
    return if 'refactor' in packageManager.getAvailablePackageNames() and
              !packageManager.isPackageDisabled 'refactor'
    new NotificationView
  deactivate: ->
  serialize: ->
  Ripper: Ripper
```

Rename filename to snake case
user
```coffeescript
Ripper = require './ripper'
NotificationView = require './notification_view'

{ packages: packageManager } = atom

module.exports =
  activate: ->
    return if 'refactor' in packageManager.getAvailablePackageNames() and
              !packageManager.isPackageDisabled 'refactor'
    new NotificationView
  deactivate: ->
  serialize: ->
  Ripper: Ripper
```
assistant