public boolean hasWindowEndTime() {
      return ((bitField0_ & 0x00000008) != 0);
    }
<pre>
The time by which the maintenance disruption will be completed.
This timestamp value is in RFC3339 text format.
</pre>

<code>optional string window_end_time = 7;</code>

@return Whether the windowEndTime field is set.
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpcomingMaintenance.java