@java.lang.Override
  public int getSerializedSize() {
    int size = memoizedSize;
    if (size != -1) return size;

    size = 0;
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
    }
    if (((bitField0_ & 0x00000001) != 0)) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getSubmission());
    }
    if (((bitField0_ & 0x00000002) != 0)) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getThreatInfo());
    }
    if (((bitField0_ & 0x00000004) != 0)) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getThreatDiscovery());
    }
    size += getUnknownFields().getSerializedSize();
    memoizedSize = size;
    return size;
  }
<pre>
Provides additional information about how the submission was discovered.
</pre>

<code>.google.cloud.webrisk.v1.ThreatDiscovery threat_discovery = 4;</code>
java-webrisk/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/SubmitUriRequest.java