No functional changes; (re)ordering imports and fixing clippy warnings #377

Job	Run time
build-windows (stable)	10m 59s
build-windows (beta)	10m 0s
build-linux (stable)	3m 42s
build-linux (beta)	3m 30s
code-coverage / cov	2m 34s
verify-clean-address-space / address_space	7s
verify-clean-node-ids / node_ids	9s
verify-clean-status-codes / status_codes	11s
verify-clean-supported-message / supported_message	5s
verify-clean-types / types	12s
verify-code-formatting / fmt	12s
	31m 41s

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