public Builder mergeEndTime(com.google.protobuf.Timestamp value) {
      if (endTimeBuilder_ == null) {
        if (((bitField0_ & 0x00000002) != 0)
            && endTime_ != null
            && endTime_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
          getEndTimeBuilder().mergeFrom(value);
        } else {
          endTime_ = value;
        }
      } else {
        endTimeBuilder_.mergeFrom(value);
      }
      if (endTime_ != null) {
        bitField0_ |= 0x00000002;
        onChanged();
      }
      return this;
    }
<pre>
Output only. The end time of any upcoming scheduled maintenance for this
instance.
</pre>

<code>.google.protobuf.Timestamp end_time = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
</code>
java-valkey/proto-google-cloud-valkey-v1/src/main/java/com/google/cloud/memorystore/v1/MaintenanceSchedule.java