private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.video.livestream.v1.Event.SlateTask,
            com.google.cloud.video.livestream.v1.Event.SlateTask.Builder,
            com.google.cloud.video.livestream.v1.Event.SlateTaskOrBuilder>
        getSlateFieldBuilder() {
      if (slateBuilder_ == null) {
        if (!(taskCase_ == 14)) {
          task_ = com.google.cloud.video.livestream.v1.Event.SlateTask.getDefaultInstance();
        }
        slateBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.video.livestream.v1.Event.SlateTask,
                com.google.cloud.video.livestream.v1.Event.SlateTask.Builder,
                com.google.cloud.video.livestream.v1.Event.SlateTaskOrBuilder>(
                (com.google.cloud.video.livestream.v1.Event.SlateTask) task_,
                getParentForChildren(),
                isClean());
        task_ = null;
      }
      taskCase_ = 14;
      onChanged();
      return slateBuilder_;
    }
<pre>
Inserts a slate.
</pre>

<code>.google.cloud.video.livestream.v1.Event.SlateTask slate = 14;</code>
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/Event.java