{"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"if"}]}
                if ident.sym == sym::cfg || ident.sym == sym::cfg_attr {
            if let tt::TokenTree::Leaf(tt::Leaf::Ident(ident)) = tt {
                    return Err(ProcMacroExpansionError::Panic(