@java.lang.Override
      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.mergeUnknownFields(unknownFields);
      }
<pre>
Specifies the data and time at which Storage Transfer Service stops
listening for events from this stream. After this time, any transfers in
progress will complete, but no new transfers are initiated.
</pre>

<code>.google.protobuf.Timestamp event_stream_expiration_time = 3;</code>
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java