@java.lang.Override
    public boolean hasVideoConfig() {
      return streamingRequestCase_ == 1;
    }
<pre>
Provides information to the annotator, specifing how to process the
request. The first `AnnotateStreamingVideoRequest` message must only
contain a `video_config` message.
</pre>

<code>.google.cloud.videointelligence.v1p3beta1.StreamingVideoConfig video_config = 1;</code>

@return Whether the videoConfig field is set.
java-video-intelligence/proto-google-cloud-video-intelligence-v1p3beta1/src/main/java/com/google/cloud/videointelligence/v1p3beta1/StreamingAnnotateVideoRequest.java