private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.video.stitcher.v1.VodSession,
            com.google.cloud.video.stitcher.v1.VodSession.Builder,
            com.google.cloud.video.stitcher.v1.VodSessionOrBuilder>
        getVodSessionFieldBuilder() {
      if (vodSessionBuilder_ == null) {
        vodSessionBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.video.stitcher.v1.VodSession,
                com.google.cloud.video.stitcher.v1.VodSession.Builder,
                com.google.cloud.video.stitcher.v1.VodSessionOrBuilder>(
                getVodSession(), getParentForChildren(), isClean());
        vodSession_ = null;
      }
      return vodSessionBuilder_;
    }
<pre>
Required. Parameters for creating a session.
</pre>

<code>
.google.cloud.video.stitcher.v1.VodSession vod_session = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-video-stitcher/proto-google-cloud-video-stitcher-v1/src/main/java/com/google/cloud/video/stitcher/v1/CreateVodSessionRequest.java