Complete doc string examples for functions.py #191

Job	Run time
build / lint-toml	5s
build / lint-python	7s
build / generate-license	56s
build / lint-rust	17s
build / check-crates-patch	0s
build / ManyLinux x86_64	11m 47s
build / macOS arm64 & Windows (3.10, windows-latest)	10m 45s
build / macOS arm64 & Windows (3.10, macos-latest)	6m 13s
build / ManyLinux arm64	9m 6s
build / build-macos-x86_64	0s
build / Source distribution	0s
build / Merge build artifacts	1s
build / Build docs	1s
test	0s
	39m 18s

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