public static DistributionSummary summary(String name, Iterable<Tag> tags) {
        return globalRegistry.summary(name, tags);
    }
public static DistributionSummary summary ( String name , Iterable < Tag > tags ) { return globalRegistry . summary ( name , tags ) ; }
Measures the distribution of samples.

@param name The base metric name
@param tags Sequence of dimensions for breaking down the name.
@return A new or existing distribution summary.