init method

@override void init()

Implementation

@override
void init() {
  logger.trace(jsonEncode({
    'service': 'cache',
    'message': 'memory is used',
    'payload': {},
  }));

  if (_sweeperInterval > Duration.zero) {
    _sweeper = Timer.periodic(_sweeperInterval, (_) => _sweepExpired());
  }
}