How can I add dependency in on_load scope with certain configs?

[xq114]

package("foo")
  on_load(function(package)
    package:add("deps", "bar", {system=true, configs={a=true, b=true}})
  end)

经测试bar并没有被成功添加为dependency

[xq114]

发现是设置问题了，已解决