 {find, flatten} = require 'underscore-plus'
-Grim = require 'grim'
 {Emitter, CompositeDisposable} = require 'event-kit'
 Serializable = require 'serializable'
 Gutter = require './gutter'

  constructor: (params) ->
    super

    unless Grim.includeDeprecatedAPIs
      @activePane = params?.activePane

    @emitter = new Emitter
    @subscriptions = new CompositeDisposable


  removedPaneItem: (item) ->
    @itemRegistry.removeItem(item)
