@java.lang.Override
    public com.google.cloud.tpu.v2alpha1.QueuedResource.BestEffortOrBuilder
        getBestEffortOrBuilder() {
      if ((tierCase_ == 3) && (bestEffortBuilder_ != null)) {
        return bestEffortBuilder_.getMessageOrBuilder();
      } else {
        if (tierCase_ == 3) {
          return (com.google.cloud.tpu.v2alpha1.QueuedResource.BestEffort) tier_;
        }
        return com.google.cloud.tpu.v2alpha1.QueuedResource.BestEffort.getDefaultInstance();
      }
    }
<pre>
The BestEffort tier.
</pre>

<code>.google.cloud.tpu.v2alpha1.QueuedResource.BestEffort best_effort = 3;</code>
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResource.java