@java.lang.Override
    public int hashCode() {
      if (memoizedHashCode != 0) {
        return memoizedHashCode;
      }
      int hash = 41;
      hash = (19 * hash) + getDescriptor().hashCode();
      if (hasScheduleStartDate()) {
        hash = (37 * hash) + SCHEDULE_START_DATE_FIELD_NUMBER;
        hash = (53 * hash) + getScheduleStartDate().hashCode();
      }
      if (hasScheduleEndDate()) {
        hash = (37 * hash) + SCHEDULE_END_DATE_FIELD_NUMBER;
        hash = (53 * hash) + getScheduleEndDate().hashCode();
      }
      if (hasStartTimeOfDay()) {
        hash = (37 * hash) + START_TIME_OF_DAY_FIELD_NUMBER;
        hash = (53 * hash) + getStartTimeOfDay().hashCode();
      }
      if (hasEndTimeOfDay()) {
        hash = (37 * hash) + END_TIME_OF_DAY_FIELD_NUMBER;
        hash = (53 * hash) + getEndTimeOfDay().hashCode();
      }
      if (hasRepeatInterval()) {
        hash = (37 * hash) + REPEAT_INTERVAL_FIELD_NUMBER;
        hash = (53 * hash) + getRepeatInterval().hashCode();
      }
      hash = (29 * hash) + getUnknownFields().hashCode();
      memoizedHashCode = hash;
      return hash;
    }
<pre>
Interval between the start of each scheduled TransferOperation. If
unspecified, the default value is 24 hours. This value may not be less than
1 hour.
</pre>

<code>.google.protobuf.Duration repeat_interval = 5;</code>
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java