{"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"crate::flags::CodegenType::AssistsDocTests,"}]}
            crate::flags::CodegenType::AssistsDocTests,
        let contents = add_preamble(
            assists.into_iter().map(|it| it.to_string()).collect::<Vec<_>>().join("\n\n"),