@java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) != 0)) {
        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getScheduleTime());
      }
      if (intervalDurationDays_ != 0) {
        size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, intervalDurationDays_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
    }
<pre>
Required. The duration of time between executions in days.
</pre>

<code>int32 interval_duration_days = 2 [(.google.api.field_behavior) = REQUIRED];</code>

@return The intervalDurationDays.
java-websecurityscanner/proto-google-cloud-websecurityscanner-v1alpha/src/main/java/com/google/cloud/websecurityscanner/v1alpha/ScanConfig.java