function __commonjs_wrapper(fn, module) {
  return module = { exports: {} }, fn(module, module.exports), module.exports;
}

// before ~75 bytes
var a=function(o){o.exports;return o.exports=r.Foo,o.exports}({exports:{}})

// after ~35 bytes
var a = r(function(r){r.exports=e.Foo})

// webpack (for comparison) ~35 bytes
function(a,b,c){a.exports=c(5).Foo}