private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.video.livestream.v1.Event.InputSwitchTask,
            com.google.cloud.video.livestream.v1.Event.InputSwitchTask.Builder,
            com.google.cloud.video.livestream.v1.Event.InputSwitchTaskOrBuilder>
        getInputSwitchFieldBuilder() {
      if (inputSwitchBuilder_ == null) {
        if (!(taskCase_ == 5)) {
          task_ = com.google.cloud.video.livestream.v1.Event.InputSwitchTask.getDefaultInstance();
        }
        inputSwitchBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.video.livestream.v1.Event.InputSwitchTask,
                com.google.cloud.video.livestream.v1.Event.InputSwitchTask.Builder,
                com.google.cloud.video.livestream.v1.Event.InputSwitchTaskOrBuilder>(
                (com.google.cloud.video.livestream.v1.Event.InputSwitchTask) task_,
                getParentForChildren(),
                isClean());
        task_ = null;
      }
      taskCase_ = 5;
      onChanged();
      return inputSwitchBuilder_;
    }
<pre>
Switches to another input stream.
</pre>

<code>.google.cloud.video.livestream.v1.Event.InputSwitchTask input_switch = 5;</code>
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/Event.java