{"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"}"}]}
            } else if self.look_ahead(2, |t| *t == token::Colon)
                Some(errors::MissingKeywordForItemDefinition::EnumOrStruct { span })
                || self.look_ahead(3, |t| *t == token::Colon)