{"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"expand_contract_clause(ecx,"}]}
    expand_contract_clause(ecx, attr_span, annotated, |new_tts| {
    let feature_span = ecx.with_def_site_ctxt(attr_span);
        new_tts.push_tree(TokenTree::Token(