public static com.google.cloud.tpu.v2alpha1.Reservation.Standard.Usage getDefaultInstance() {
        return DEFAULT_INSTANCE;
      }
<pre>
The real-time value of usage within the reservation, with the unit
specified in field capacity_units.
</pre>

<code>int64 total = 1;</code>

@return This builder for chaining.
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Reservation.java