Docs: Fix return_value() inline documentation #258

Job	Run time
code-quality / Lint Gherkin Feature files	25s
code-quality / PHPStan	20s
code-quality / Spell check	8s
code-quality / Lint GitHub Actions workflows	8s
code-quality / Lint PHP files	19s
code-quality / PHPCS	22s
	1m 42s

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