{"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"s.add_impl_generic(parse_quote!"}]}
    s.add_impl_generic(parse_quote! { #encoder_ty: ::rustc_middle::ty::codec::TyEncoder<'tcx> });
    }
    s.add_bounds(synstructure::AddBounds::Fields);