@java.lang.Override
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.setUnknownFields(unknownFields);
      }
<pre>
The grace period after which a `writes_done_request` is issued, that a
`WritesDone` is expected from the client.

The server is free to cancel the RPC should this expire.

A system default will be chosen if unset.
</pre>

<code>.google.protobuf.Duration writes_done_grace_period = 6;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/ReceiveEventsRequest.java