private void maybeForceBuilderInitialization() {
        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
          getIntervalFieldBuilder();
          getUsageFieldBuilder();
        }
      }
<pre>
Details of a standard reservation.
</pre>

Protobuf type {@code google.cloud.tpu.v2alpha1.Reservation.Standard}
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Reservation.java