@java.lang.Override
      public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1) return size;

        size = 0;
        if (total_ != 0L) {
          size += com.google.protobuf.CodedOutputStream.computeInt64Size(1, total_);
        }
        size += getUnknownFields().getSerializedSize();
        memoizedSize = size;
        return size;
      }
<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 The total.
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Reservation.java