public Builder mergeFrom(
          com.google.cloud.vertexai.api.SpeculativeDecodingSpec.DraftModelSpeculation other) {
        if (other
            == com.google.cloud.vertexai.api.SpeculativeDecodingSpec.DraftModelSpeculation
                .getDefaultInstance()) return this;
        if (!other.getDraftModel().isEmpty()) {
          draftModel_ = other.draftModel_;
          bitField0_ |= 0x00000001;
          onChanged();
        }
        this.mergeUnknownFields(other.getUnknownFields());
        onChanged();
        return this;
      }
<pre>
Draft model speculation works by using the smaller model to generate
candidate tokens for speculative decoding.
</pre>

Protobuf type {@code google.cloud.vertexai.v1.SpeculativeDecodingSpec.DraftModelSpeculation}
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/SpeculativeDecodingSpec.java