A variant of blake2s_compress for the final block of the message. The input msg must always be exactly 16 u32 elements, padded with zeros if necessary, regardless of the value of byte_count. Using any padding scheme other than zero-padding will produce a different hash output.

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Signature

pub extern fn blake2s_finalize(state: Box, byte_count: u32, msg: Box) -> Box nopanic;