docs: function errmsgs(utils) {
    const obj = this._obj,
          errorMessages = getErrorMessages(obj);
  
    this.assert(
      _.isArray(errorMessages) && !_.isEmpty(errorMessages),
      'expected #{this} to have errmsgs',
      'expected #{this} to not have errmsgs'
    );
    utils.flag(this, 'object', errorMessages);
  }