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.common.util; /** * Stores constants that are widely used across classes. * this class contains several nested classes, each containing a specific * category of constants. */ public final class Const { // This section holds constants that are defined as constants primarily because they are repeated in many places. public static final String USER_NOBODY_TEXT = "-"; public static final String USER_TEAM_FOR_INSTRUCTOR = "Instructors"; public static final String DEFAULT_DISPLAY_NAME_FOR_INSTRUCTOR = "Instructor"; public static final String DISPLAYED_NAME_FOR_ANONYMOUS_PARTICIPANT = "Anonymous"; public static final int SECTION_SIZE_LIMIT = 100; public static final String DEFAULT_SECTION = "None"; public static final String UNKNOWN_INSTITUTION = "Unknown Institution"; public static final String DEFAULT_TIME_ZONE = "UTC"; public static final Charset ENCODING = StandardCharsets.UTF_8; public static final Duration FEEDBACK_SESSIONS_SEARCH_WINDOW = Duration.ofDays(30); public static final Duration LOGS_RETENTION_PERIOD = Duration.ofDays(30); public static final Duration COOKIE_VALIDITY_PERIOD = Duration.ofDays(7); public static final int SEARCH_QUERY_SIZE_LIMIT = 50; // These constants are used as variable values to mean that the variable is in a 'special' state. public static final int INT_UNINITIALIZED = -9999; public static final int MAX_POSSIBLE_RECIPIENTS = -100; public static final int POINTS_EQUAL_SHARE = 100; public static final int POINTS_NOT_SURE = -101; public static final int POINTS_NOT_SUBMITTED = -999; public static final int POINTS_NO_VALUE = Integer.MIN_VALUE; public static final String GENERAL_QUESTION = "%GENERAL%"; public static final Instant TIME_REPRESENTS_FOLLOW_OPENING; public static final Instant TIME_REPRESENTS_FOLLOW_VISIBLE; public static final Instant TIME_REPRESENTS_LATER; public static final Instant TIME_REPRESENTS_NOW; public static final Instant TIME_REPRESENTS_DEFAULT_TIMESTAMP; static { TIME_REPRESENTS_FOLLOW_OPENING = TimeHelper.parseInstant("1970-12-31T00:00:00Z"); TIME_REPRESENTS_FOLLOW_VISIBLE = TimeHelper.parseInstant("1970-06-22T00:00:00Z"); TIME_REPRESENTS_LATER = TimeHelper.parseInstant("1970-01-01T00:00:00Z"); TIME_REPRESENTS_NOW = TimeHelper.parseInstant("1970-02-14T00:00:00Z"); TIME_REPRESENTS_DEFAULT_TIMESTAMP = TimeHelper.parseInstant("2011-01-01T00:00:00Z"); } public static final String TEST_EMAIL_DOMAIN = "@gmail.tmt"; // Other Constants private Const() { // Utility class containing constants } /** * Represents role names for instructors based on their permission settings. */ public static class InstructorPermissionRoleNames { public static final String INSTRUCTOR_PERMISSION_ROLE_COOWNER = "Co-owner"; public static final String INSTRUCTOR_PERMISSION_ROLE_MANAGER = "Manager"; public static final String INSTRUCTOR_PERMISSION_ROLE_OBSERVER = "Observer"; public static final String INSTRUCTOR_PERMISSION_ROLE_TU
Assistant: