| ReplyEntityMapper | Adapter that converts ReplyEntity objects to ReplyMessage objects. |
| ReplyHeaderUIComponent | A BaseUIComponent representing the reply header. |
| ReplyInputUIComponent | A BaseUIComponent representing the reply text input field. |
| ReplyMessagesUIComponent | |
| ReplyUIViewModel | ViewModel containing data required by the reply dialog, such as the list of messages, the header, text input field, and the current user. |