@java.lang.Override
  public com.google.cloud.vertexai.api.SpeculativeDecodingSpec.DraftModelSpeculation
      getDraftModelSpeculation() {
    if (speculationCase_ == 2) {
      return (com.google.cloud.vertexai.api.SpeculativeDecodingSpec.DraftModelSpeculation)
          speculation_;
    }
    return com.google.cloud.vertexai.api.SpeculativeDecodingSpec.DraftModelSpeculation
        .getDefaultInstance();
  }
<pre>
draft model speculation.
</pre>

<code>
.google.cloud.vertexai.v1.SpeculativeDecodingSpec.DraftModelSpeculation draft_model_speculation = 2;
</code>

@return The draftModelSpeculation.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/SpeculativeDecodingSpec.java