text: 
  module.exports = exports = Change;
  
  /*!
   * Change object constructor
   *
   * The `change` object passed to Object.observe callbacks
   * is immutable so we create a new one to modify.
   */
  
  function Change (path, change) {
    this.path = path;
    this.name = change.name;
    this.type = change.type;
    this.object = change.object;
    this.value = change.object[change.name];
    this.oldValue = change.oldValue;
  }
  
  