public com.google.cloud.tpu.v2alpha1.Reservation.Standard.UsageOrBuilder getUsageOrBuilder() {
        if (usageBuilder_ != null) {
          return usageBuilder_.getMessageOrBuilder();
        } else {
          return usage_ == null
              ? com.google.cloud.tpu.v2alpha1.Reservation.Standard.Usage.getDefaultInstance()
              : usage_;
        }
      }
<pre>
The current usage of the reservation.
</pre>

<code>.google.cloud.tpu.v2alpha1.Reservation.Standard.Usage usage = 5;</code>
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Reservation.java