{"ast_node_type":"variable","tokens":[{"end":62,"kind":"keyword","start":0,"text":"let"}]}
        let err = |this: &Parser<'_>, stmts: Vec<ast::Stmt>| {
            vec![self.mk_stmt(first_expr.span, ast::StmtKind::Expr(first_expr.clone()))];
            let span = stmts[0].span.to(stmts[stmts.len() - 1].span);