@java.lang.Override
  public com.google.cloud.visionai.v1.PacketHeaderOrBuilder getHeaderOrBuilder() {
    return header_ == null
        ? com.google.cloud.visionai.v1.PacketHeader.getDefaultInstance()
        : header_;
  }
<pre>
The packet header.
</pre>

<code>.google.cloud.visionai.v1.PacketHeader header = 1;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/Packet.java