public Builder clearInterval() {
        bitField0_ = (bitField0_ & ~0x00000008);
        interval_ = null;
        if (intervalBuilder_ != null) {
          intervalBuilder_.dispose();
          intervalBuilder_ = null;
        }
        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