@java.lang.Override
    public com.google.cloud.tpu.v2.QueuedResource.TpuOrBuilder getTpuOrBuilder() {
      if ((resourceCase_ == 2) && (tpuBuilder_ != null)) {
        return tpuBuilder_.getMessageOrBuilder();
      } else {
        if (resourceCase_ == 2) {
          return (com.google.cloud.tpu.v2.QueuedResource.Tpu) resource_;
        }
        return com.google.cloud.tpu.v2.QueuedResource.Tpu.getDefaultInstance();
      }
    }
<pre>
Optional. Defines a TPU resource.
</pre>

<code>
.google.cloud.tpu.v2.QueuedResource.Tpu tpu = 2 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/QueuedResource.java