private com.google.protobuf.SingleFieldBuilderV3<
            com.google.webrisk.v1beta1.ThreatEntryAdditions,
            com.google.webrisk.v1beta1.ThreatEntryAdditions.Builder,
            com.google.webrisk.v1beta1.ThreatEntryAdditionsOrBuilder>
        getAdditionsFieldBuilder() {
      if (additionsBuilder_ == null) {
        additionsBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.webrisk.v1beta1.ThreatEntryAdditions,
                com.google.webrisk.v1beta1.ThreatEntryAdditions.Builder,
                com.google.webrisk.v1beta1.ThreatEntryAdditionsOrBuilder>(
                getAdditions(), getParentForChildren(), isClean());
        additions_ = null;
      }
      return additionsBuilder_;
    }
<pre>
A set of entries to add to a local threat type's list.
</pre>

<code>.google.cloud.webrisk.v1beta1.ThreatEntryAdditions additions = 5;</code>
java-webrisk/proto-google-cloud-webrisk-v1beta1/src/main/java/com/google/webrisk/v1beta1/ComputeThreatListDiffResponse.java