ref: Differentiate between memory and file cache keys #1487
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This passes two different cache keys (
memory_cache_keyandfile_cache_key) to thecompute_memoizedmethod. The intended use case comes from proguard processing: we want to keep proguard files on disk as a whole, but only load segments of them into memory at a time. To this end, we want several in-memory cache keys (those of the individual parts of the proguard file) to correspond to one on-disk cache key (that of the entire file).