@java.lang.Override
    public boolean hasGuaranteed() {
      return tierCase_ == 4;
    }
<pre>
Optional. The Guaranteed tier
</pre>

<code>
.google.cloud.tpu.v2.QueuedResource.Guaranteed guaranteed = 4 [(.google.api.field_behavior) = OPTIONAL];
</code>

@return Whether the guaranteed field is set.
java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/QueuedResource.java