* ContiguousSet} instances.
   */
  public abstract ContiguousSet<C> intersection(ContiguousSet<C> other);

  /**
   * Returns a range, closed on both ends, whose endpoints are the minimum and maximum values
   * contained in this set. This is equivalent to {@code range(CLOSED, CLOSED)}.
   *
   * @throws NoSuchElementException if this set is empty
   */
  public abstract Range<C> range();

  /**

    // Round down to the nearest power of 2.
    expectedEntries = max(expectedEntries, 2);
    int tableSize = Integer.highestOneBit(expectedEntries);
    // Check to make sure that we will not exceed the maximum load factor.
    if (expectedEntries > (int) (loadFactor * tableSize)) {
      tableSize <<= 1;
      return (tableSize > 0) ? tableSize : MAX_TABLE_SIZE;
    }
    return tableSize;
  }

        .withRefreshes(ImmutableSet.of(DurationSpec.of(1, SECONDS), DurationSpec.of(1, DAYS)));
  }

  private static void warmUp(LoadingCache<Object, Object> cache, int minimum, int maximum) {
    for (int i = minimum; i < maximum; i++) {
      cache.getUnchecked(i);
    }
  }

  private Entry<Object, Object> entryOf(Object key, Object value) {
    return Maps.immutableEntry(key, value);
  }

        .withRefreshes(ImmutableSet.of(DurationSpec.of(1, SECONDS), DurationSpec.of(1, DAYS)));
  }

  private static void warmUp(LoadingCache<Object, Object> cache, int minimum, int maximum) {
    for (int i = minimum; i < maximum; i++) {
      cache.getUnchecked(i);
    }
  }

  private Entry<Object, Object> entryOf(Object key, Object value) {
    return Maps.immutableEntry(key, value);
  }

	queueDirComment   = `staging dir for undelivered messages e.g. '/home/events'`
	queueLimitComment = `maximum limit for undelivered messages, defaults to '100000'`
)

// Help template inputs for all notification targets
var (
	HelpWebhook = config.HelpKVS{
		config.HelpKV{
			Key:         target.WebhookEndpoint,

                            "required": True,
                            "schema": {
                                "title": "The ID of the item to get",
                                "maximum": 1000.0,
                                "minimum": 0.0,
                                "type": "integer",
                            },
                            "name": "item_id",
                            "in": "path",

                                "required": False,
                                "schema": {
                                    "type": "integer",
                                    "maximum": 100,
                                    "exclusiveMinimum": 0,
                                    "default": 100,
                                    "title": "Limit",
                                },

                                "title": "The ID of the item to get",
                                "type": "integer",
                                "exclusiveMinimum": 0,
                                "maximum": 1000,
                            },
                            "name": "item_id",
                            "in": "path",
                        },
                        {

		}
	}()

	sr.fillReq <- struct{}{} // initial fill

	return sr
}

// remaining returns the number of unread bytes
// if EOF for the underlying reader has not yet been found,
// maximum possible integer value will be returned
func (s *scanner) remaining() int64 {
	if atomic.LoadInt64(&s.end) == maxInt {
		return maxInt
	}
	return atomic.LoadInt64(&s.end) - s.pos
}

var DefaultKVS = config.KVS{
	config.KV{
		Key:   MaxTimeout,
		Value: "30s",
	},
}

var configLk sync.RWMutex

// Config represents the subnet related configuration
type Config struct {
	// MaxTimeout - maximum timeout for a drive operation
	MaxTimeout time.Duration `json:"maxTimeout"`
}

// Update - updates the config with latest values
func (c *Config) Update(updated Config) error {
	configLk.Lock()