{"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"ty::GenericParamDefKind::Type"}]}
            ty::GenericParamDefKind::Type { .. } => {
            ty::GenericParamDefKind::Lifetime => tcx.lifetimes.re_erased.into(),
                bug!("Instance::mono: {:?} has type parameters", def_id)