@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
    }
    if (((bitField0_ & 0x00000001) != 0)) {
      output.writeMessage(2, getVodSession());
    }
    getUnknownFields().writeTo(output);
  }
<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