public void Observe(double val)
{
Unlabelled.Observe(val);
}
public void Observe(double val, long count) => Unlabelled.Observe(val, count);
public void Observe(double val, long?timestamp)
{
Unlabelled.Observe(val, timestamp);
}
public void Observe(double val) => Unlabelled.Observe(val, 1);