public Builder setInterval(com.google.type.Interval.Builder builderForValue) {
        if (intervalBuilder_ == null) {
          interval_ = builderForValue.build();
        } else {
          intervalBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000008;
        onChanged();
        return this;
      }
<pre>
The start and end time of the reservation.
</pre>

<code>.google.type.Interval interval = 4;</code>
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Reservation.java