public IReadOnlyCollection<TimeSpan> GetIntervals()
{
return new ReadOnlyCollection<TimeSpan>(new[]
{
TimeSpan.FromMilliseconds(100),
TimeSpan.FromMilliseconds(250),
TimeSpan.FromMilliseconds(500),
TimeSpan.FromMilliseconds(1000),
TimeSpan.FromMilliseconds(5000)
});
}
}