{"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"tt::Leaf::Literal(lit)"}]}
            tt::Leaf::Literal(lit) => separator = Separator::Literal(lit.clone()),
            tt::Leaf::Literal(_) if has_sep => return Err(ParseError::InvalidRepeat),
            tt::Leaf::Punct(punct) => {