Whiteboard
constructor(whiteboardUsers: List<Map<String, Any?>>?, whiteboardData: Map<String, Any?>?, status: String?, updateWhiteboardUsers: (List<WhiteboardUser>) -> Unit, updateShapes: (List<WhiteboardShape>) -> Unit, updateWhiteboardStarted: (Boolean) -> Unit, updateWhiteboardEnded: (Boolean) -> Unit, shapes: List<WhiteboardShape>)