private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vmmigration.v1.InstantiatingMigratedVMStep,
            com.google.cloud.vmmigration.v1.InstantiatingMigratedVMStep.Builder,
            com.google.cloud.vmmigration.v1.InstantiatingMigratedVMStepOrBuilder>
        getInstantiatingMigratedVmFieldBuilder() {
      if (instantiatingMigratedVmBuilder_ == null) {
        if (!(stepCase_ == 5)) {
          step_ = com.google.cloud.vmmigration.v1.InstantiatingMigratedVMStep.getDefaultInstance();
        }
        instantiatingMigratedVmBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vmmigration.v1.InstantiatingMigratedVMStep,
                com.google.cloud.vmmigration.v1.InstantiatingMigratedVMStep.Builder,
                com.google.cloud.vmmigration.v1.InstantiatingMigratedVMStepOrBuilder>(
                (com.google.cloud.vmmigration.v1.InstantiatingMigratedVMStep) step_,
                getParentForChildren(),
                isClean());
        step_ = null;
      }
      stepCase_ = 5;
      onChanged();
      return instantiatingMigratedVmBuilder_;
    }
<pre>
Instantiating migrated VM step.
</pre>

<code>.google.cloud.vmmigration.v1.InstantiatingMigratedVMStep instantiating_migrated_vm = 5;
</code>
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/CloneStep.java