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.lnp.util; /** * Stores the specifications for a LNP test, and verifies whether the results meet the criteria. */ public final class LNPSpecification { /** * Maximum allowable threshold for the ratio of failed request * (between 0 and 1) to the test endpoint. */ private double errorRateLimit; /** * Maximum allowable threshold for the mean response time * (in seconds) for the test endpoint. */ private double meanResTimeLimit; private String resultsErrorMessage = ""; // This class should always be constructed using builder() instead of constructor private LNPSpecification() { } /** * Verify the LNP results statistics with the specified threshold. * @param resultStatistics {@link LNPResultsStatistics} object that contains * the result statistics from running this test. */ public void verifyLnpTestSuccess(LNPResultsStatistics resultStatistics) { checkErrorLimit(resultStatistics.getErrorPct()); checkMeanResTimeLimit(resultStatistics.getMeanResTime()); if (!resultsErrorMessage.isEmpty()) { throw new AssertionError(resultsErrorMessage); } } /** * Checks if the mean response time exceeds the specified time limit. */ private void checkMeanResTimeLimit(double meanResTime) { if (meanResTimeLimit < meanResTime / 1000) { double exceededMeanResTime = meanResTime / 1000 - meanResTimeLimit; resultsErrorMessage += "Avg resp time is " + String.format("%.2f", exceededMeanResTime) + "s higher than the specified threshold."; } } /** * Checks if the error rate exceeds the specified error percentage limit. */ private void checkErrorLimit(double errorPct) { if (errorRateLimit < errorPct) { double exceededErrorRate = errorPct - errorRateLimit; resultsErrorMessage += "Error rate is " + String.format("%.2f", exceededErrorRate) + "% higher than the specified threshold. "; } } /** * Returns a builder for {@link LNPSpecification}. */ public static Builder builder() { return new Builder(); } /** * A builder class for {@link LNPSpecification}. */ public static class Builder { private LNPSpecification specification; private Builder() { specification = new LNPSpecification(); } public Builder withErrorRateLimit(double errorRateLimit) { specification.errorRateLimit = errorRateLimit; return this; } public Builder withMeanRespTimeLimit(double meanResTimeLimit) { specification.meanResTimeLimit = meanResTimeLimit; return this; } public LNPSpecification build() { return specification; } } }
    
Assistant: