private void maybeForceBuilderInitialization() {
      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
        getStateTimeFieldBuilder();
        getErrorFieldBuilder();
        getCreateTimeFieldBuilder();
        getFrameEndTimeFieldBuilder();
        getVmsFieldBuilder();
      }
    }
<pre>
Utilization report details the utilization (CPU, memory, etc.) of selected
source VMs.
</pre>

Protobuf type {@code google.cloud.vmmigration.v1.UtilizationReport}
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/UtilizationReport.java