code: function deprecateRenamedMethod(book, key, instance, oldName, newName, msg) {
      msg = msg || ('"' + oldName + '" is deprecated, use "' + newName + '()" instead');
      var fn = objectPath.get(instance, newName);
  
      instance[oldName] = deprecateMethod(book, key, fn, msg);
  }
docs: Deprecate a method in favor of another one
  
  @param {Book} book
  @param {String} key
  @param {Object} instance
  @param {String} oldName
  @param {String} newName