public final AddCollectionItemResponse addCollectionItem(CollectionItem item) {
    AddCollectionItemRequest request = AddCollectionItemRequest.newBuilder().setItem(item).build();
    return addCollectionItem(request);
  }
Adds an item into a Collection.

<p>Sample code:

<pre>{@code
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in
// https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
try (WarehouseClient warehouseClient = WarehouseClient.create()) {
  CollectionItem item = CollectionItem.newBuilder().build();
  AddCollectionItemResponse response = warehouseClient.addCollectionItem(item);
}
}</pre>

@param item Required. The item to be added.
@throws com.google.api.gax.rpc.ApiException if the remote call fails
java-visionai/google-cloud-visionai/src/main/java/com/google/cloud/visionai/v1/WarehouseClient.java