import * as _flatfile_listener from '@flatfile/listener';

interface DateFormatNormalizerConfig {
    sheetSlug?: string;
    dateFields: string[];
    outputFormat: string;
    includeTime: boolean;
    locale?: string;
}
declare function validateDate(config: DateFormatNormalizerConfig): (listener: _flatfile_listener.FlatfileListener) => void;

export { validateDate };