One distinction of the `LoaderRegistry` from `Registry` is it overrides `.register()` to wrap returned value in a function.
Full disclosure. I started out with `Registry` alone and at some point I encounter value that is a function (e.g. a class) and it gets quite confusing whether the `value` can be returned immediately or it is a loader that needs to be executed. If both values and loaders can be stored in the same registry, I need another mechanism to indicate which is which. This separation was to clarify that it is either just values or just loaders. [ Full content available at: https://github.com/apache/incubator-superset/pull/6028 ] This message was relayed via gitbox.apache.org for devnull@infra.apache.org
