public Builder addThreatTypesValue(int value) {
        ensureThreatTypesIsMutable();
        threatTypes_.add(value);
        onChanged();
        return this;
      }
<pre>
The ThreatList this threat belongs to.
This must contain at least one entry.
</pre>

<code>repeated .google.cloud.webrisk.v1beta1.ThreatType threat_types = 1;</code>

@param value The enum numeric value on the wire for threatTypes to add.
@return This builder for chaining.
java-webrisk/proto-google-cloud-webrisk-v1beta1/src/main/java/com/google/webrisk/v1beta1/SearchHashesResponse.java