public ConcurrencyTestTool.RouterPutGetHelper getPutGetHelper() throws Exception {
    return new ConcurrencyTestTool.RouterPutGetHelper(properties, clusterMap, routerFactoryClass, maxBlobSize,
        minBlobSize);
  }
{@inheritDoc}
@return an instance of {@link ConcurrencyTestTool.RouterPutGetHelper}
throws Exception if instantiation of the {@link ConcurrencyTestTool.RouterPutGetHelper} fails
ambry-tools/src/main/java/com/github/ambry/tools/admin/RouterPutGetHelperFactory.java