This is an optional part of the CloudStorage.API. In fact it is not really a real part of the CloudStorage.API at all. What this separate project does is create a unified way of accessing Cloud Storage Account Information using the Managed Extensibility Framework
Metadata for separating different sets of Storage Account Information.
Not an implementation of IStorageAccountInfoMetadata though it could be. MEF does not require the attributes to implement the contract. It uses a dynamic proxy and fills it with the data from the attributes on an extending part. But that's a lot of MEF
detail that really doesn't belong here.
The names of the default sets of IStorageAccountInfo.
An implementation of IStorageAccountInfoFactory.