/**
 * Take a value and convert it to the specified date format. The value passed in must first be converted
 * to ISO 8601 date format so that date-fns can work validate and format the the date correctly.
 *
 * @param value The string that represents a date
 * @param options Specifies the options used to convert a date. defaultValue, if supplied, is used if the value specified is
 * not a valid date and must be a valid ISO 8601 date. dateFormat specifies the date format to be returned. Valid date formats
 * are defined at https://date-fns.org/v2.16.1/docs/format
 *
 * Date issues: https://stackoverflow.com/questions/7556591/is-the-javascript-date-object-always-one-day-off
 * date-fns issues: https://stackoverflow.com/questions/58561169/date-fns-how-do-i-format-to-utc
 * To avoid date-fns issues with iso8601 dates we filter them out using a regex
 */
export declare function extractDate(value: string, options?: {
    defaultValue?: string | null;
    dateFormat?: string;
}): string | null;