private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.storagebatchoperations.v1.DeleteObject,
            com.google.cloud.storagebatchoperations.v1.DeleteObject.Builder,
            com.google.cloud.storagebatchoperations.v1.DeleteObjectOrBuilder>
        getDeleteObjectFieldBuilder() {
      if (deleteObjectBuilder_ == null) {
        if (!(transformationCase_ == 6)) {
          transformation_ =
              com.google.cloud.storagebatchoperations.v1.DeleteObject.getDefaultInstance();
        }
        deleteObjectBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.storagebatchoperations.v1.DeleteObject,
                com.google.cloud.storagebatchoperations.v1.DeleteObject.Builder,
                com.google.cloud.storagebatchoperations.v1.DeleteObjectOrBuilder>(
                (com.google.cloud.storagebatchoperations.v1.DeleteObject) transformation_,
                getParentForChildren(),
                isClean());
        transformation_ = null;
      }
      transformationCase_ = 6;
      onChanged();
      return deleteObjectBuilder_;
    }
<pre>
Delete objects.
</pre>

<code>.google.cloud.storagebatchoperations.v1.DeleteObject delete_object = 6;</code>
java-storagebatchoperations/proto-google-cloud-storagebatchoperations-v1/src/main/java/com/google/cloud/storagebatchoperations/v1/Job.java