public Builder mergeRiceHashes(com.google.webrisk.v1beta1.RiceDeltaEncoding value) {
      if (riceHashesBuilder_ == null) {
        if (((bitField0_ & 0x00000002) != 0)
            && riceHashes_ != null
            && riceHashes_ != com.google.webrisk.v1beta1.RiceDeltaEncoding.getDefaultInstance()) {
          getRiceHashesBuilder().mergeFrom(value);
        } else {
          riceHashes_ = value;
        }
      } else {
        riceHashesBuilder_.mergeFrom(value);
      }
      if (riceHashes_ != null) {
        bitField0_ |= 0x00000002;
        onChanged();
      }
      return this;
    }
<pre>
The encoded 4-byte prefixes of SHA256-formatted entries, using a
Golomb-Rice encoding. The hashes are converted to uint32, sorted in
ascending order, then delta encoded and stored as encoded_data.
</pre>

<code>.google.cloud.webrisk.v1beta1.RiceDeltaEncoding rice_hashes = 2;</code>
java-webrisk/proto-google-cloud-webrisk-v1beta1/src/main/java/com/google/webrisk/v1beta1/ThreatEntryAdditions.java