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.ui.request; /** * The request for enrolling a list of students. */ public class StudentsEnrollRequest extends BasicRequest { private static final String ERROR_MESSAGE_DUPLICATE_EMAIL = "Error, duplicated email addresses detected in the input: %s"; private static final String ERROR_MESSAGE_EMPTY_ENROLLMENT = "The enroll line is empty. " + "Please input at least one student detail."; // Initialize to handle users make a http request with empty body. private List<StudentEnrollRequest> studentEnrollRequests; public StudentsEnrollRequest(List<StudentEnrollRequest> studentEnrollRequests) { this.studentEnrollRequests = studentEnrollRequests; } public List<StudentEnrollRequest> getStudentEnrollRequests() { return studentEnrollRequests; } @Override public void validate() throws InvalidHttpRequestBodyException { assertTrue(!studentEnrollRequests.isEmpty(), ERROR_MESSAGE_EMPTY_ENROLLMENT); for (StudentEnrollRequest request : studentEnrollRequests) { request.validate(); } Set<String> emails = new HashSet<>(); for (StudentEnrollRequest request : studentEnrollRequests) { assertTrue(!emails.contains(request.getEmail()), String.format(ERROR_MESSAGE_DUPLICATE_EMAIL, request.getEmail())); emails.add(request.getEmail()); } } /** * The request for enrolling a student. */ public static class StudentEnrollRequest extends BasicRequest { private String name; private String email; private String team; private String section; private String comments; public StudentEnrollRequest(String name, String email, String team, String section, String comments) { this.name = name; this.email = email; this.team = team; this.section = section; this.comments = comments; } @Override public void validate() throws InvalidHttpRequestBodyException { assertTrue(name != null && !name.isEmpty(), "Student name cannot be empty"); assertTrue(email != null && !email.isEmpty(), "Student email cannot be empty"); assertTrue(team != null && !team.isEmpty(), "Team cannot be empty"); assertTrue(section != null, "Section cannot be null"); assertTrue(comments != null, "Comments cannot be null"); } public String getName() { return this.name; } public String getEmail() { return this.email; } public String getTeam() { return this.team; } public String getSection() { return this.section.isEmpty() ? Const.DEFAULT_SECTION : this.section; } public String getComments() { return this.comments; } } }
    
Assistant: