public Builder setSeriesMetadata(com.google.cloud.visionai.v1.SeriesMetadata value) {
      if (seriesMetadataBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        seriesMetadata_ = value;
      } else {
        seriesMetadataBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000010;
      onChanged();
      return this;
    }
<pre>
Input only. Immutable. Metadata that the server needs to know where to
write the packets to. It's only required for the first packet.
</pre>

<code>
.google.cloud.visionai.v1.SeriesMetadata series_metadata = 5 [(.google.api.field_behavior) = INPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE];
</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/PacketHeader.java