public static Builder newBuilder(com.google.cloud.vertexai.api.PredictResponse prototype) {
    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
  }
<pre>
Output only. Request-level metadata returned by the model. The metadata
type will be dependent upon the model implementation.
</pre>

<code>.google.protobuf.Value metadata = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/PredictResponse.java