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examples: the module surface, and one header kept for the contrast #392

Job	Run time
invariants (linux-aarch64)	4m 7s
invariants (macos-arm64)	3m 33s
invariants (windows-x86_64)	4m 10s
invariants (linux-x86_64)	7m 33s
scan (windows-x86_64)	8m 14s
scan (linux-aarch64)	2m 55s
scan (macos-arm64)	4m 50s
scan (linux-x86_64)	7m 27s
coverage (every host the table names was scanned)	6s
	42m 55s