ember data embedded subdocument

The documentation for this topic is sparse.

The question is simple. I want one of the attributes of this JSON payload to be an object like such:

business-hours : {
  monday: {
    open: “24hr”,
    from: <some time>,
    to: <some time>
  },
  tuesday: {
    open: “closed”,
    from: <some time>,
    to: <some time>
  }
},

But I am totally not sure how to make embedded subdocuments in Ember. It looks like I could do a hasMany relationship, and set up a separate model, but that doesn't make sense to me.

Can I not just leave the DS.attr() blank

"businessHours": DS.attr(),

and start shoving things into that object with input values like such?

{{input type="time" value=model.businessHours.wednesday.from}}