class Sprockets::UnloadedAsset

Returns a String.

"environment-version" may be resolved to "environment-1.0-3.2.0" for version "3.2.0" of sprockets
the `dependency_history_key` after each of the "dependencies" is "resolved" for example
a digest. The digest is generated from dependencies stored via information stored in
Used to retrieve a string containing the "compressed" path to an asset based on

Internal: Digest key

def digest_key(digest)
  "asset-uri-digest:#{compressed_path}:#{digest}"
end