{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"\"target_env\""}]}
            "target_env" => KNOWN_ENV.iter().copied().for_each(add_completion),
            "target_arch" => KNOWN_ARCH.iter().copied().for_each(add_completion),
            "target_os" => KNOWN_OS.iter().copied().for_each(add_completion),