How to use the jasmine-reporters.NUnitXmlReporter function in jasmine-reporters

// this is a Jasmine helper function used to export results as xunit tests results.
var jasmineReporters = require('jasmine-reporters');
var SpecReporter = require('jasmine-spec-reporter').SpecReporter;

var junitReporter = new jasmineReporters.NUnitXmlReporter({
  savePath: './',
  consolidateAll: false,
});

var textReporter = new SpecReporter({  // add jasmine-spec-reporter
  spec: {
    displayDuration: true,
  }
});

jasmine.getEnv().clearReporters();
jasmine.getEnv().addReporter(junitReporter);
jasmine.getEnv().addReporter(textReporter);

// this is a Jasmine helper function used to export results as xunit tests results.
var jasmineReporters = require('jasmine-reporters');

var nunitReporter = new jasmineReporters.NUnitXmlReporter({
  savePath: './',
  consolidateAll: false,
});

jasmine.getEnv().addReporter(nunitReporter)

}
        }

        // BUILT-IN REPORTERS
        // additional Jasmine reporters
        // https://github.com/larrymyers/jasmine-reporters
        var reporter;

        // Reporters that only write to a file:
        if (ropts.junit) {
            reporter = new reporters.JUnitXmlReporter(ropts.junit);
            reporter.name = 'JUnit XML Reporter';
            addReporter(reporter);
        }
        if (ropts.nunit) {
            reporter = new reporters.NUnitXmlReporter(ropts.nunit);
            reporter.name = 'NUnit XML Reporter';
            addReporter(reporter);
        }

        // We will not allow reporters producing command-line output to run at
        // the same time, to prevent puzzled outputs.
        var conflict = Boolean(ropts.console);
        if (!conflict && ropts.terminal) {
            conflict = true;
            reporter = new reporters.TerminalReporter(ropts.terminal);
            reporter.name = 'Terminal Reporter';
            addReporter(reporter);
        }
        if (!conflict && ropts.teamcity) {
            conflict = true;
            reporter = new reporters.TeamCityReporter(); // no options to set