increaseRetryCount method
void
increaseRetryCount()
Implementation
void increaseRetryCount() {
if (_backOffPeriod < config.maxInterval) {
final newBackOff = config.interval * pow(config.multiplier, _retryCount);
_backOffPeriod = min(newBackOff.toInt(), config.maxInterval.toInt());
}
_retryCount++;
}