How to use the @braintree/event-emitter.prototype function in @braintree/event-emitter

instance.teardown(function () {
        methods(HostedFields.prototype).concat(methods(EventEmitter.prototype))
          .forEach(function (method) {
            var error;

            try {
              instance[method]();
            } catch (err) {
              error = err;
            }

            expect(error).to.be.an.instanceof(BraintreeError);
            expect(error.type).to.equal(BraintreeError.types.MERCHANT);
            expect(error.code).to.equal('METHOD_CALLED_AFTER_TEARDOWN');
            expect(error.message).to.equal(method + ' cannot be called after teardown.');
          });

        done();

ThreeDSecure.prototype.teardown = function () {
  var methodNames = methods(ThreeDSecure.prototype).concat(methods(EventEmitter.prototype));

  convertMethodsToError(this, methodNames);

  return this._framework.teardown();
};

this._destructor.registerFunctionForTeardown(function () {
    var methodNames = methods(HostedFields.prototype).concat(methods(EventEmitter.prototype));

    convertMethodsToError(self, methodNames);
  });
}