{"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"self.meta_item().and_then(|meta_item|"}]}
        self.meta_item().and_then(|meta_item| {
    pub fn singleton_lit_list(&self) -> Option<(Symbol, &MetaItemLit)> {
            meta_item.meta_item_list().and_then(|meta_item_list| {