public Builder setExpireTime(com.google.protobuf.Timestamp.Builder builderForValue) {
        if (expireTimeBuilder_ == null) {
          expireTime_ = builderForValue.build();
        } else {
          expireTimeBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000002;
        onChanged();
        return this;
      }
<pre>
The cache lifetime for the returned match. Clients must not cache this
response past this timestamp to avoid false positives.
</pre>

<code>.google.protobuf.Timestamp expire_time = 2;</code>
java-webrisk/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/SearchUrisResponse.java