@java.lang.Override
  public com.google.cloud.vertexai.api.SpeculativeDecodingSpecOrBuilder
      getSpeculativeDecodingSpecOrBuilder() {
    return speculativeDecodingSpec_ == null
        ? com.google.cloud.vertexai.api.SpeculativeDecodingSpec.getDefaultInstance()
        : speculativeDecodingSpec_;
  }
<pre>
Optional. Spec for configuring speculative decoding.
</pre>

<code>
.google.cloud.vertexai.v1.SpeculativeDecodingSpec speculative_decoding_spec = 30 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/DeployedModel.java