setValuesSerialized(serializedValues) {
    this.pauseNotify_ = true;
    this.fields_
        .filter(field => field.id_ in serializedValues && field.deserializeValue)
        .forEach(field => field.deserializeValue(serializedValues[field.id_]));
    this.pauseNotify_ = false;
    this.notifyChanged_();
  }
Sets the form field values for the key/value pairs in the given object.
Values must be serialized forms of the form values. The form must be
initialized before calling this method.