@java.lang.Override
  public boolean hasNegativeExpireTime() {
    return ((bitField0_ & 0x00000001) != 0);
  }
<pre>
For requested entities that did not match the threat list, how long to
cache the response until.
</pre>

<code>.google.protobuf.Timestamp negative_expire_time = 2;</code>

@return Whether the negativeExpireTime field is set.
java-webrisk/proto-google-cloud-webrisk-v1beta1/src/main/java/com/google/webrisk/v1beta1/SearchHashesResponse.java