private static void AssertPercentilesAggregate(AggregateDictionary bucket, string name)
{
var percentilesAggregate = bucket.Percentiles(name);
percentilesAggregate.Should().NotBeNull();
percentilesAggregate.Items.Should().HaveCount(1).And.Contain(p => Math.Abs(p.Percentile - 50d) < double.Epsilon);
}