Set writes the values into a file by using the keys as their filename. The keys will be sha1ed. If no duration gets set, the file atime and mtime applies to 1970-01-01 which means that the content never expires. once the mtime and atime is greater than the year 1970, the expiration gets checked.
(_ context.Context, keys []string, values [][]byte, expires []time.Duration)
source not stored for this graph (policy: none)
nothing calls this directly
no test coverage detected