public void PostContactlistsContactlistIdExportTest()
        {
            // TODO: add unit test for the method 'PostContactlistsContactlistIdExport'
            string contactListId = null; // TODO: replace null with proper value
            var    response      = instance.PostContactlistsContactlistIdExport(contactListId);

            Assert.IsInstanceOf <string> (response, "response is string");
        }