public com.google.protobuf.Timestamp getNegativeExpireTime() {
    return negativeExpireTime_ == null
        ? com.google.protobuf.Timestamp.getDefaultInstance()
        : negativeExpireTime_;
  }
public com . google . protobuf . Timestamp getNegativeExpireTime ( ) { return negativeExpireTime_ == null ? com . google . protobuf . Timestamp . getDefaultInstance ( ) : negativeExpireTime_ ; }
<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>