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.logic.core; /** * Handles operations related to courses. * * @see CourseAttributes * @see CoursesDb */ public final class CoursesLogic { private static final Logger log = Logger.getLogger(); private static final CoursesLogic instance = new CoursesLogic(); /* Explanation: This class depends on CoursesDb class but no other *Db classes. * That is because reading/writing entities from/to the database is the * responsibility of the matching *Logic class. * However, this class can talk to other *Logic classes. That is because * the logic related to one entity type can involve the logic related to * other entity types. */ private final CoursesDb coursesDb = CoursesDb.inst(); private AccountsLogic accountsLogic; private FeedbackSessionsLogic feedbackSessionsLogic; private FeedbackQuestionsLogic fqLogic; private FeedbackResponsesLogic frLogic; private FeedbackResponseCommentsLogic frcLogic; private InstructorsLogic instructorsLogic; private StudentsLogic studentsLogic; private DeadlineExtensionsLogic deadlineExtensionsLogic; private CoursesLogic() { // prevent initialization } public static CoursesLogic inst() { return instance; } void initLogicDependencies() { accountsLogic = AccountsLogic.inst(); feedbackSessionsLogic = FeedbackSessionsLogic.inst(); fqLogic = FeedbackQuestionsLogic.inst(); frLogic = FeedbackResponsesLogic.inst(); frcLogic = FeedbackResponseCommentsLogic.inst(); instructorsLogic = InstructorsLogic.inst(); studentsLogic = StudentsLogic.inst(); deadlineExtensionsLogic = DeadlineExtensionsLogic.inst(); } /** * Gets the institute associated with the course. */ public String getCourseInstitute(String courseId) { CourseAttributes cd = getCourse(courseId); assert cd != null : "Trying to getCourseInstitute for inexistent course with id " + courseId; return cd.getInstitute(); } /** * Creates a course. * * @return the created course * @throws InvalidParametersException if the course is not valid * @throws EntityAlreadyExistsException if the course already exists in the database. */ CourseAttributes createCourse(CourseAttributes courseToCreate) throws InvalidParametersException, EntityAlreadyExistsException { return coursesDb.createEntity(courseToCreate); } /** * Creates a course and an associated instructor for the course. * * <br/>Preconditions: <br/> * * {@code instructorGoogleId} already has an account and instructor privileges. */ public void createCourseAndInstructor(String instructorGoogleId, CourseAttributes courseToCreate) throws InvalidParametersException, EntityAlreadyExistsException { AccountAttributes courseCreator = accountsLogic.getAccount(instructorGoogleId); assert courseCreator != null : "Trying to create a course for a non-existent instructor :" + instructorGoogleId; CourseAttributes createdCourse = createCourse(courseToCreate); // Create the initial instructor for the course InstructorPrivileges privileges = new InstructorPri
Assistant: