@java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
      if (!sha256_.isEmpty()) {
        output.writeBytes(1, sha256_);
      }
      getUnknownFields().writeTo(output);
    }
<pre>
The SHA256 hash of the client state; that is, of the sorted list of all
hashes present in the database.
</pre>

<code>bytes sha256 = 1;</code>

@return The sha256.
java-webrisk/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/ComputeThreatListDiffResponse.java