awaitility/src/main/java/org/awaitility/pollinterval/FibonacciPollInterval.java
public Duration next(int pollCount, Duration previousDuration) {
        return new Duration(fibonacci(offset + pollCount), timeUnit);
    }
public Duration next(int pollCount, Duration previousDuration) {
        return new Duration(fibonacci(offset + pollCount), timeUnit);
    }
Generate the next duration

@param pollCount        The number of times the condition has been polled (evaluated)
@param previousDuration The duration of the previously returned poll interval
@return The next duration in the fibonacci sequence.