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

      size = 0;
      if (size_ != 0) {
        size += com.google.protobuf.CodedOutputStream.computeInt32Size(1, size_);
      }
      if (capacityUnits_
          != com.google.cloud.tpu.v2alpha1.Reservation.Standard.CapacityUnits
              .CAPACITY_UNITS_UNSPECIFIED
              .getNumber()) {
        size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, capacityUnits_);
      }
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resourceType_)) {
        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, resourceType_);
      }
      if (((bitField0_ & 0x00000001) != 0)) {
        size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getInterval());
      }
      if (((bitField0_ & 0x00000002) != 0)) {
        size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getUsage());
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
    }
<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