Given:
```js
{
  token: {
    access: {
      user: 'hodor'
    }
  }
}

var keys = 'token.access.user'.split('.');
// value will initially be 'token', which has been set to
var value = _.reduce(keys, function(value, key) {
  session.getToken();
  return value[key] ? value[key] : undefined;
});
```
will give you `'hodor'`;