private com.google.protobuf.SingleFieldBuilderV3<
            com.google.webrisk.v1.ThreatInfo.Confidence,
            com.google.webrisk.v1.ThreatInfo.Confidence.Builder,
            com.google.webrisk.v1.ThreatInfo.ConfidenceOrBuilder>
        getThreatConfidenceFieldBuilder() {
      if (threatConfidenceBuilder_ == null) {
        threatConfidenceBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.webrisk.v1.ThreatInfo.Confidence,
                com.google.webrisk.v1.ThreatInfo.Confidence.Builder,
                com.google.webrisk.v1.ThreatInfo.ConfidenceOrBuilder>(
                getThreatConfidence(), getParentForChildren(), isClean());
        threatConfidence_ = null;
      }
      return threatConfidenceBuilder_;
    }
<pre>
Confidence that the URI is unsafe.
</pre>

<code>.google.cloud.webrisk.v1.ThreatInfo.Confidence threat_confidence = 2;</code>
java-webrisk/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/ThreatInfo.java