private void maybeForceBuilderInitialization() {
      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
        getUpdateMaskFieldBuilder();
        getMigratingVmFieldBuilder();
      }
    }
<pre>
Request message for 'UpdateMigratingVm' request.
</pre>

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