code: function (sender, parent, key, value) {
    this.scrubber = sender
    this.parent = parent
    this.key = key
    this.value = value
  }
docs: Represents the condition function passed on the Scrubber.when.
  @constructor
  
  @param {Scrubber} sender - The sender scrubber
  @param {object} parent - The parent object
  @param {string} key - The property key
  @param {any} value - The property value
  
  @property {object} parent - The parent object
  @property {string} key - The property key
  @property {any} value - The property value