public Builder setThreatTypesValue(int index, int value) {
      ensureThreatTypesIsMutable();
      threatTypes_.set(index, value);
      onChanged();
      return this;
    }
<pre>
Required. The ThreatLists to search in. Multiple ThreatLists may be
specified.
</pre>

<code>
repeated .google.cloud.webrisk.v1.ThreatType threat_types = 2 [(.google.api.field_behavior) = REQUIRED];
</code>

@param index The index to set the value at.
@param value The enum numeric value on the wire for threatTypes to set.
@return This builder for chaining.
java-webrisk/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/SearchUrisRequest.java