code: function clone (thing) {
    var copy = {};
    var value;
  
    for (var key in thing) {
      value = thing[key];
  
      if (!value) {
        copy[key] = value;
      } else if (momentum.isMoment(value)) {
        copy[key] = value.clone();
      } else if (value._isStylesConfiguration) {
        copy[key] = clone(value);
      } else {
        copy[key] = value;
      }
    }
  
    return copy;
  }
docs: naïve implementation, specifically meant to clone `options` objects