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.datatransfer; /** * Represents the type of an entity that is involved in a feedback question or response. */ public enum FeedbackParticipantType { // booleans represent: isValidGiver?, isValidRecipient?, isValidViewer? /** * Represents "own self". * * <p>As a recipient, it represents the same person as the response giver. * * <p>As a giver, it represents the feedback session creator. */ SELF(true, true, false), /** * Students of the course. */ STUDENTS(true, true, true), /** * Students of the same section. */ STUDENTS_IN_SAME_SECTION(true, true, true), /** * Students of the course, excluding the response giver. * * <p>Used to generate options for MCQ & MSQ. */ STUDENTS_EXCLUDING_SELF(false, true, false), /** * Instructors of the course. */ INSTRUCTORS(true, true, true), /** * Teams of the course. */ TEAMS(true, true, false), /** * Teams of the same section. */ TEAMS_IN_SAME_SECTION(true, true, false), /** * Teams of the course, excluding the response giver. */ TEAMS_EXCLUDING_SELF(false, true, false), /** * Team of the response giver. */ OWN_TEAM(false, true, false), /** * Team members of the response giver, excluding the response giver. */ OWN_TEAM_MEMBERS(false, true, true), /** * Team members of the response giver, including the response giver. */ OWN_TEAM_MEMBERS_INCLUDING_SELF(false, true, true), /** * Receiver of the response. */ RECEIVER(false, false, true), /** * Team members of the receiver of the response. */ RECEIVER_TEAM_MEMBERS(false, false, true), /** * Represents "no specific recipient". */ NONE(false, true, false), /** * Giver of the response. * * <p>Used by feedbackResponseComment. */ GIVER(false, false, true); private final boolean validGiver; private final boolean validRecipient; private final boolean validViewer; FeedbackParticipantType(boolean isGiver, boolean isRecipient, boolean isViewer) { this.validGiver = isGiver; this.validRecipient = isRecipient; this.validViewer = isViewer; } public boolean isValidGiver() { return validGiver; } public boolean isValidRecipient() { return validRecipient; } public boolean isValidViewer() { return validViewer; } public boolean isTeam() { return this == TEAMS || this == TEAMS_EXCLUDING_SELF || this == OWN_TEAM || this == TEAMS_IN_SAME_SECTION; } /** * Formats the participant type as a singular noun. * * @return A user-friendly {@code String} representing this participant in singular form. */ public String toSingularFormString() { switch (this) { case INSTRUCTORS: return "instructor"; case STUDENTS: // Fallthrough case STUDENTS_IN_SAME_SECTION: // Fallthrough case STUDENTS_EXCLUDING_SELF: // Fallthrough case OWN_TEAM_MEMBERS: // Fallthrough case OWN_TEAM_MEMBERS_INCLUDING_SELF: return "student"; case TEAMS: // Fallthrough case TEAMS_IN_SAME_SECTION: // Fallthrough case TEAMS_EXCLUDING_SELF: // Fallthrough case OWN_TEAM: return "team"; default: return super.toString(); } } }
    
Assistant: