feat(protocol): Batch #628

Job	Run time
docs	26s
clippy	27s
doctest	39s
cfg-check	23s
feature-checks	55s
feature-powerset	1m 38s
fmt	12s
no-std	24s
test stable --no-default-features	45s
wasm-unknown	23s
wasm-wasi	25s
test stable	44s
test stable --all-features	1m 3s
test nightly --no-default-features	29s
test nightly	40s
test nightly --all-features	58s
test 1.81 --no-default-features	38s
test 1.81	45s
	11m 54s

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