private void maybeForceBuilderInitialization() {
        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
          getStartTimeFieldBuilder();
          getEndTimeFieldBuilder();
        }
      }
<pre>
Partition of asset in UTC Epoch time. Supported by STREAM_VIDEO corpus
type.
</pre>

Protobuf type {@code google.cloud.visionai.v1.Partition.TemporalPartition}
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/Partition.java