{"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"debug!(\"instantiate_method_sig(pick={:?},"}]}
        debug!("instantiate_method_sig(pick={:?}, all_args={:?})", pick, all_args);
    ) -> (ty::FnSig<'tcx>, ty::InstantiatedPredicates<'tcx>) {