import 'package:fcs/domain/entities/user.dart'; abstract class UserService { Future inviteUser(String userName, String phoneNumber); Future deleteInvite(String phoneNumber); Future acceptRequest(String userID); Future findUser(String phoneNumber); Future> searchUser(String term); Future uploadMsgToken(String token); Future removeMsgToken(String token); Future enableUser(String userID, bool enabled); Future getUser(String userID); }