code: function convertDateType (data) {
    if (!(data.type === 'string' && data.pattern)) {
      return data
    }
    const pattern = data.pattern
    delete data.pattern
    switch (pattern) {
      case constants.dateOnlyPattern:
        data['type'] = 'date-only'
        break
      case constants.timeOnlyPattern:
        data['type'] = 'time-only'
        break
      case constants.dateTimeOnlyPattern:
        data['type'] = 'datetime-only'
        break
      case constants.RFC3339DatetimePattern:
        data['type'] = 'datetime'
        data['format'] = constants.RFC3339
        break
      case constants.RFC2616DatetimePattern:
        data['type'] = 'datetime'
        data['format'] = constants.RFC2616
        break
      default:
        data['pattern'] = pattern
    }
    return data
  }
docs: Change JSON date type of data to valid RAML date type.
  
  @param  {Object} data
  @returns  {Object}