{"1.1.0",
[{<<"backoff">>,{pkg,<<"backoff">>,<<"1.1.3">>},0}]}.
[
{pkg_hash,[
 {<<"backoff">>, <<"DE762C05ED6DFAE862D83DC9E58AE936792B01302B3595F5CFFE86F2D8E6C1DD">>}]}
].