Kind of baffled by how the Wayland protocol documentation just... doesn't define what an 'array' is in the wire format.
This is the entirety of the 'array' documentation: "Starts with 32-bit array size in bytes, followed by the array contents verbatim, and finally padding to a 32-bit boundary."
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(The answer is that it's a Vec<u8>, according to https://smithay.github.io/wayland-rs/src/wayland_backend/protocol.rs.html#31, by the way)
