public com.google.protobuf.Timestamp.Builder getUpdateTimeBuilder() {
      bitField0_ |= 0x00000080;
      onChanged();
      return getUpdateTimeFieldBuilder().getBuilder();
    }
<pre>
Output only. Time when this workstation was most recently updated.
</pre>

<code>
.google.protobuf.Timestamp update_time = 7 [(.google.api.field_behavior) = OUTPUT_ONLY];
</code>
java-workstations/proto-google-cloud-workstations-v1beta/src/main/java/com/google/cloud/workstations/v1beta/Workstation.java