Multi-key dict provides also extended interface for iterating over items and
keys (e.g. by the key type), which might be useful when creating, e.g.
dictionaries with index-name key pair allowing to iterate over items using
either: names or indexes.
It can be useful for many many other similar use-cases, and there is no limit
to the number of keys used to map to the value.
Paths come from the repository package-file index for the observed builds. They describe archive/package associations, not every file that will exist on a running system after maintainer scripts, alternatives, generated state, diversions, or installation choices.
Each row is recorded package-index metadata for one version, architecture, suite, and repository. Names, URLs, and sizes are source-reported; a link is a potentially mutable retrieval location, not an OpenFactory redistribution claim or proof that OpenFactory retained the artifact bytes.