public int getTargetingParametersCount() {
      return internalGetTargetingParameters().getMap().size();
    }
<pre>
Required. The stream ID generated by Ad Manager. This must be set if GAM
is being used for ads and the session uses client-side ad tracking.
</pre>

<code>string stream_id = 1 [(.google.api.field_behavior) = REQUIRED];</code>

@return The bytes for streamId.
java-video-stitcher/proto-google-cloud-video-stitcher-v1/src/main/java/com/google/cloud/video/stitcher/v1/LiveSession.java