如果两个服务属于同一个模块，如何将一个nestjs服务注入到另一个服务中？

// user.service.ts
import { Injectable } from '@nestjs/common';

@Injectable()
export class UserService {
  getUserById(id: number) {
    // 模拟获取用户信息
    return { id, name: 'John Doe' };
  }
}

// auth.service.ts
import { Injectable } from '@nestjs/common';
import { UserService } from './user.service';

@Injectable()
export class AuthService {
  constructor(private readonly userService: UserService) {}

  authenticateUser(userId: number) {
    const user = this.userService.getUserById(userId);
    // 进行认证逻辑
    return user;
  }
}

// auth.module.ts
import { Module } from '@nestjs/common';
import { UserService } from './user.service';
import { AuthService } from './auth.service';

@Module({
  providers: [UserService, AuthService],
})
export class AuthModule {}