module Digest::HMAC

def self.sha256(key: Bytes | String, data: Bytes | String) -> Bytes

The HMAC-SHA-256 of data under key: 32 bytes.

Digest::HMAC.sha256("key", "The quick brown fox jumps over the lazy dog").hex[0, 16]
# => "f7bc83f430538424"

<std:digest>:56