{"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"\"target_os\""}]}
            "target_os" => KNOWN_OS.iter().copied().for_each(add_completion),
            "target_env" => KNOWN_ENV.iter().copied().for_each(add_completion),
            "target_vendor" => KNOWN_VENDOR.iter().copied().for_each(add_completion),