@java.lang.Override
    public int getFlags() {
      return flags_;
    }
<pre>
Immutable. Packet flag set. SDK will set the flag automatically.
</pre>

<code>int32 flags = 6 [(.google.api.field_behavior) = IMMUTABLE];</code>

@return The flags.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/PacketHeader.java