Implement stashed state #1564

Job	Run time
cargo check (aarch64-android)	26s
cargo check (msrv) (wasm32)	19s
cargo check (msrv) (windows-latest)	1m 7s
cargo check (msrv) (macos-latest)	28s
cargo clippy (windows-latest)	45s
cargo clippy (wasm32)	1m 6s
cargo doc	1m 47s
cargo clippy (macos-latest)	45s
cargo check (msrv) (ubuntu-latest)	35s
cargo clippy (ubuntu-latest)	38s
formatting	34s
cargo test (wasm32)	25s
Prime LFS Cache	5s
typos	5s
cargo test (windows-latest)	3m 8s
cargo test (macos-latest)	1m 45s
cargo test (ubuntu-latest)	4m 45s
	18m 43s

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