```coffeescript
BaseStackEditorView = require './basestackeditorview'

module.exports = class VariablesEditorView extends BaseStackEditorView

  constructor: (options = {}, data) ->

    unless options.content
      options.content = """
        # This is a YAML file which you can define
        # key-value pairs like;
        #
        #   foo: bar
        #

      """
      options.contentType = 'yaml'

    super options, data
```

Update yaml content with information.
user
```coffeescript
BaseStackEditorView = require './basestackeditorview'

module.exports = class VariablesEditorView extends BaseStackEditorView

  constructor: (options = {}, data) ->

    unless options.content
      options.content = """
        # Define custom variables here
        # You can define your custom variables, and use them in your stack template.
        #
        # This is a YAML file which you can define key-value pairs like;
        #
        #   foo: bar
        #

      """
      options.contentType = 'yaml'

    super options, data
```
assistant