public Builder clearComputeEngineTargetDefaults() {
      if (computeEngineTargetDefaultsBuilder_ == null) {
        if (targetVmDefaultsCase_ == 26) {
          targetVmDefaultsCase_ = 0;
          targetVmDefaults_ = null;
          onChanged();
        }
      } else {
        if (targetVmDefaultsCase_ == 26) {
          targetVmDefaultsCase_ = 0;
          targetVmDefaults_ = null;
        }
        computeEngineTargetDefaultsBuilder_.clear();
      }
      return this;
    }
<pre>
Details of the target VM in Compute Engine.
</pre>

<code>
.google.cloud.vmmigration.v1.ComputeEngineTargetDefaults compute_engine_target_defaults = 26;
</code>
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/MigratingVm.java