public Builder clearUsage() {
        bitField0_ = (bitField0_ & ~0x00000010);
        usage_ = null;
        if (usageBuilder_ != null) {
          usageBuilder_.dispose();
          usageBuilder_ = null;
        }
        onChanged();
        return this;
      }
<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