Rust

Merge pull request #118 from iotaledger/feat/cleanups-for-final-api #358

Job	Run time
format	50s
docs	54s
clippy (stable)	52s
build-and-test (stable, ubuntu-latest, false)	1m 18s
udeps	5m 50s
build-and-test (stable, macos-latest, false)	1m 59s
	11m 43s

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