{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"impl<'tcx,"}]}
impl<'tcx, M: Machine<'tcx>> LayoutOfHelpers<'tcx> for InterpCx<'tcx, M> {
    type LayoutOfResult = Result<TyAndLayout<'tcx>, InterpErrorKind<'tcx>>;