Assistant: 
User: 
    Please analyze the following code file and determine whether it belongs to any of the provided modules based on the listed module descriptions.
    Note that the provided list of modules may not be exhaustive, and some files may not belong to any of the modules. 
    If the code belongs to a module, Only output the module name, without any explanation or additional information; otherwise, return 'None' if it does not belong to any module.

    Modules : {
        "UI": "Handles the front-end user interface, consisting of HTML, CSS, and JavaScript files generated by the Angular framework. It processes user requests and interacts with the server using AJAX for data retrieval and client-side interactions."
"Test Driver": "Facilitates automated regression testing and handles transmission of test data in JSON format. It performs Java testing using TestNG and JavaScript unit-testing with Jest. It also sets up a simulated web server for servlet-level tests and automates end-to-end testing using Selenium Java."
"Logic": "Manages the business logic of TEAMMATES, including handling relationships between entities, managing transactions, input value sanitization, access control rights, and interfacing with GAE-provided or third-party APIs."
"Storage": "Performs CRUD operations on data entities, validation of data, and abstraction of GQL queries, hiding the complexities of datastore from the Logic component."
"Common": "Contains utility classes, custom exceptions, and data transfer objects used across the entire application for easy consolidation and transfer of structured data."
"E2E": "Handles end-to-end testing and load & performance testing, providing helpers, abstractions of browser pages, and test cases for E2E tests and L&P tests."
"Client": "Contains scripts for administrative tasks, such as migrating data to a new schema and calculating statistics. This module connects directly to the application back-end for administrative purposes."
    }

    Code: package teammates.storage.entity; /** * Represents a unique user in the system. */ @Entity @Index public class Account extends BaseEntity { @Id private String googleId; private String name; private String email; @Unindex @Serialize private Map<String, Instant> readNotifications; @Translate(InstantTranslatorFactory.class) private Instant createdAt; @SuppressWarnings("unused") private Account() { // required by Objectify } /** * Instantiates a new account. * * @param googleId the Google ID of the user. * @param name The name of the user. * @param email The official email of the user. * @param readNotifications The notifications that the user has read, stored in a map of ID to end time. */ public Account(String googleId, String name, String email, Map<String, Instant> readNotifications) { this.setGoogleId(googleId); this.setName(name); this.setEmail(email); this.setReadNotifications(readNotifications); this.setCreatedAt(Instant.now()); } public String getGoogleId() { return googleId; } public void setGoogleId(String googleId) { this.googleId = googleId; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } /** * Retrieves the account's read notifications map. * Returns an empty map if the account does not yet have the readNotifications attribute. */ public Map<String, Instant> getReadNotifications() { if (readNotifications == null) { return new HashMap<>(); } return readNotifications; } public void setReadNotifications(Map<String, Instant> readNotifications) { this.readNotifications = readNotifications; } public Instant getCreatedAt() { return createdAt; } public void setCreatedAt(Instant createdAt) { this.createdAt = createdAt; } }
    
Assistant: