Stone.js API
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    cloudFileBlueprint: CloudFileBlueprint = ...

    Opt-in blueprint: import and register it to enable cloud storage.

    It contributes the CloudFileServiceProvider, which binds storage (the multi-disk manager) and fileSystem (the default disk) into the container. Configure disks under stone.filesystem (or use the @CloudFile() decorator for a single disk). stone.providers is an array, so this merges with the rest of the app.