anchor.diff:  
   When injected, the `@RegistryType` is used as a qualifier to selectively inject either the `APPLICATION`, `BASE`, or `VENDOR` registry.
   If no qualifier is used, the default `MetricRegistry` returned is the `APPLICATION` registry.
  +
  +Implementations may choose to use a Factory class to produce the injectable `MetricRegistry` bean via CDI. See <<metric-registry-factory>>. Note: The factory would be an internal class and not exposed to the application.
   
   ==== @RegistryType
   The `@RegistryType` can be used to retrieve the `MetricRegistry` for a specific scope.
  
positive.code: ----
  
  This configuration can be backed into the runtime or be provided via an external configuration file.
  
negative.code: <TO DO>
  
  
  [[metric-registries]]
  === Metric Registries
  
  The `MetricRegistry` is used to maintain a collection of metrics along with their metadata.
  There is one shared singleton of the `MetricRegistry` per scope (_application_, _base_, and _vendor_).
  