{"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"self.parse_unspanned_seq(open,"}]}
        self.parse_unspanned_seq(open, close, SeqSep::trailing_allowed(exp!(Comma)), f)
    ) -> PResult<'a, (ThinVec<T>, Trailing)> {
    }