How to use the hazelcast-client.Config.NearCacheConfig function in hazelcast-client

let initConfig = (nearCache) => {
	  let config = new Config.ClientConfig();
	  config.networkConfig.addresses = [{host: '127.0.0.1', port: '5701'}];


	  //region NearCache
	  if (nearCache) {
	    let orgsNearCacheConfig = new Config.NearCacheConfig();
	    orgsNearCacheConfig.invalidateOnChange = true;
	    orgsNearCacheConfig.name = 'my-distributed-map';

	    let ncConfigs = {};
	    ncConfigs[orgsNearCacheConfig.name] = orgsNearCacheConfig;
	    config.nearCacheConfigs = ncConfigs;
	  }
	  process.stdout.write("Config Start ==> \n");
	//  process.stdout.write((JSON.stringify(config, null, 2)));
	  process.stdout.write("Config End  ==> \n");
	  return config;
	  //endregion
	};

* distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var Client = require('hazelcast-client').Client;
var Config = require('hazelcast-client').Config;
var EvictionPolicy = require('hazelcast-client').EvictionPolicy;

var nearCachedMapName = 'nearCachedMap';
var regularMapName = 'reqularMap';
var client;

var cfg = new Config.ClientConfig();
var nearCacheConfig = new Config.NearCacheConfig();
nearCacheConfig.name = nearCachedMapName;
nearCacheConfig.evictionPolicy = EvictionPolicy.LFU;
nearCacheConfig.invalidateOnChange = true;
cfg.nearCacheConfigs[nearCachedMapName] = nearCacheConfig;

function do50000Gets(client, mapName) {
    var timerStart;
    var timerEnd;
    var map;

    return client.getMap(mapName).then(function (mp) {
        map = mp;
        return map.put('item', 'anItem');
    }).then(function () {
        // warm up the cache
        return client.getMap(mapName);

function createConfig() {
    var cfg = new Config.ClientConfig();

    var nearCacheConfig = new Config.NearCacheConfig();
    cfg.nearCacheConfigs['nearCachedMap'] = nearCacheConfig;
    cfg.properties['hazelcast.client.statistics.enabled'] = true;
    cfg.properties['hazelcast.client.statistics.period.seconds'] = 2;
    return cfg;
}