Is it possible to get an actual Javascript object from hookstate.js State without referencing the objects keys?

I am using the hookstate.js library and am trying to something as simple as to get the entire Javascript object from the State object without having to reference the key of the object. For example, state.set({first:'John',last:'Doe'}) and then somehow access the entire object (as a bona fide JS object, not State) without having to know the object key and reference state.first.get(). Is there no built in way to do such a simple thing?
I can do so with a reduce so:

    const { keys } = state
    const jsObject= keys.reduce((pre, cur) => {
      const stateVal = state[cur].get()
      return { ...pre, [cur]: stateVal }
    }, {})

however this is not possible if I am expecting nested objects etc.