{"ast_node_type":"other","tokens":[{"end":9,"kind":"keyword","start":0,"text":"{"}]}
        {
                tcx.hir_opt_const_param_default_param_def_id(tcx.local_def_id_to_hir_id(def_id))
            // In `generics_of` we set the generics' parent to be our parent's parent which means that