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.webapi; /** * Get a list of instructors of a course. */ class GetInstructorsAction extends Action { @Override AuthType getMinAuthLevel() { return AuthType.LOGGED_IN; } @Override void checkSpecificAccessControl() throws UnauthorizedAccessException { if (userInfo.isAdmin) { return; } String courseId = getNonNullRequestParamValue(Const.ParamsNames.COURSE_ID); CourseAttributes course = logic.getCourse(courseId); if (course == null) { throw new EntityNotFoundException("course not found"); } String intentStr = getRequestParamValue(Const.ParamsNames.INTENT); if (intentStr == null) { // get partial details of instructors with information hiding // student should belong to the course StudentAttributes student = logic.getStudentForGoogleId(courseId, userInfo.getId()); gateKeeper.verifyAccessible(student, course); } else if (intentStr.equals(Intent.FULL_DETAIL.toString())) { // get all instructors of a course without information hiding // this need instructor privileges InstructorAttributes instructor = logic.getInstructorForGoogleId(courseId, userInfo.getId()); gateKeeper.verifyAccessible(instructor, course); } else { throw new InvalidHttpParameterException("unknown intent"); } } @Override public JsonResult execute() { String courseId = getNonNullRequestParamValue(Const.ParamsNames.COURSE_ID); List<InstructorAttributes> instructorsOfCourse = logic.getInstructorsForCourse(courseId); InstructorsData data; String intentStr = getRequestParamValue(Const.ParamsNames.INTENT); if (intentStr == null) { instructorsOfCourse = instructorsOfCourse.stream() .filter(InstructorAttributes::isDisplayedToStudents) .collect(Collectors.toList()); data = new InstructorsData(instructorsOfCourse); // hide information data.getInstructors().forEach(i -> { i.setGoogleId(null); i.setJoinState(null); i.setIsDisplayedToStudents(null); i.setRole(null); }); } else if (intentStr.equals(Intent.FULL_DETAIL.toString())) { // get all instructors of a course without information hiding // adds googleId if caller is admin or has the appropriate privilege to modify instructor if (userInfo.isAdmin || logic.getInstructorForGoogleId(courseId, userInfo.getId()).getPrivileges() .isAllowedForPrivilege(Const.InstructorPermissions.CAN_MODIFY_INSTRUCTOR)) { data = new InstructorsData(); for (InstructorAttributes instructor : instructorsOfCourse) { InstructorData instructorData = new InstructorData(instructor); instructorData.setGoogleId(instructor.getGoogleId()); if (userInfo.isAdmin) { instructorData.setKey(instructor.getKey()); } data.getInstructors().add(instructorData); } } else { data = new InstructorsData(instructorsOfCourse); } } else { throw new InvalidHttpParameterException("unknown intent"); } return new JsonResult(data); } }
    
Assistant: