sequence -> iterable in tutorial #20345

Job	Run time
cargo fmt	21s
cargo clippy	2m 23s
Determine changes	7s
cargo test \| ubuntu-latest	6m 32s
cargo test \| windows-latest	8m 20s
cargo fuzz	6m 28s
cargo udeps	3m 31s
cargo test (wasm)	2m 0s
pre-commit	2m 13s
test scripts	1m 8s
python package	1m 55s
benchmarks	17m 27s
mkdocs	3m 9s
Formatter ecosystem and progress checks	0s
ecosystem	0s
	55m 34s

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