{"ast_node_type":"variable","tokens":[{"end":48,"kind":"keyword","start":0,"text":"let"}]}
        let abi = source.value.abi().map(|abi| {
        let name = as_name_opt(source.value.name());
            abi.abi_string().map_or_else(|| sym::C, |it| Symbol::intern(it.text_without_quotes()))