//Create Time constraint: max five times by second
    var timeconstraint = TimeLimiter.GetFromMaxCountByInterval(5, TimeSpan.FromSeconds(1));

    //Use it
    for(int i=0; i<1000; i++)
    {
        await timeconstraint.Perform(ConsoleIt);
    }       
    
    ....
    private Task ConsoleIt()
    {
        Trace.WriteLine(string.Format("{0:MM/dd/yyy HH:mm:ss.fff}", DateTime.Now));
        return Task.FromResult(0);
    }

    //Create first constraint: max five times by second
    var constraint = new CountByIntervalAwaitableConstraint(5, TimeSpan.FromSeconds(1));
    
    //Create second constraint: one time each 100 ms
    var constraint2 = new CountByIntervalAwaitableConstraint(1, TimeSpan.FromMilliseconds(100));
    
    //Compose the two constraints
    var timeconstraint = TimeLimiter.Compose(constraint, constraint2);

    //Use it
    for(int i=0; i<1000; i++)
    {
        await timeconstraint.Perform(ConsoleIt);
    }