code: @BetaApi(
        "The surface for long-running operations is not stable yet and may change in the future.")
    public final OperationFuture<Empty, Struct> batchUpdateEntitiesAsync(
        BatchUpdateEntitiesRequest request) {
      return batchUpdateEntitiesOperationCallable().futureCall(request);
    }
docs: Updates or creates multiple entities in the specified entity type. This method does not affect
  entities in the entity type that aren't explicitly specified in the request.
  
  <p>Operation &lt;response: [google.protobuf.Empty][google.protobuf.Empty]&gt;
  
  <p>Sample code:
  
  <pre><code>
  try (EntityTypesClient entityTypesClient = EntityTypesClient.create()) {
  EntityTypeName parent = EntityTypeName.of("[PROJECT]", "[ENTITY_TYPE]");
  List&lt;EntityType.Entity&gt; entities = new ArrayList&lt;&gt;();
  BatchUpdateEntitiesRequest request = BatchUpdateEntitiesRequest.newBuilder()
  .setParent(parent.toString())
  .addAllEntities(entities)
  .build();
  entityTypesClient.batchUpdateEntitiesAsync(request).get();
  }
  </code></pre>
  
  @param request The request object containing all of the parameters for the API call.
  @throws com.google.api.gax.rpc.ApiException if the remote call fails