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Nathan Harris authored
Motivation: Inspired by Swift by Sundell's article on type-safe identifers, the goal of this commit is to have the compiler assist in preventing incorrect Redis key values from being used in API calls. See https://www.swiftbysundell.com/articles/type-safe-identifiers-in-swift/ for the inspiration. Modifications: - Add new `RedisKey` struct that wraps around a single `String` value that conforms to several expected protocols (Hashable, Comparable, Codable, etc.) - Change all command APIs to require `RedisKey` rather than plain strings Result: When encountering an API requiring a RedisKey, it should be much more apparant at the use site what form a value should take.