/**
 * Generates a CSV string from a 2d array.
 *
 * @param dataRows - 2d array of table data rows
 * @returns - csv string
 */
export declare function convertArrayToCsv(dataRows: string[][]): string;
/**
 * Returns a representation of the date in the date time string format ISO8601
 */
export declare function formatDateToISOString(dateValue: unknown): string | undefined;