@java.lang.Override
    public com.google.cloud.tpu.v2.QueuedResource.GuaranteedOrBuilder getGuaranteedOrBuilder() {
      if ((tierCase_ == 4) && (guaranteedBuilder_ != null)) {
        return guaranteedBuilder_.getMessageOrBuilder();
      } else {
        if (tierCase_ == 4) {
          return (com.google.cloud.tpu.v2.QueuedResource.Guaranteed) tier_;
        }
        return com.google.cloud.tpu.v2.QueuedResource.Guaranteed.getDefaultInstance();
      }
    }
<pre>
Optional. The Guaranteed tier
</pre>

<code>
.google.cloud.tpu.v2.QueuedResource.Guaranteed guaranteed = 4 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/QueuedResource.java