import { FormTypes, SubmissionTypes } from '@oneblink/types';
import { attachmentsService } from '../apps';
export declare function validateAttachmentExists(attachment: attachmentsService.Attachment, attachmentRetentionInDays: number | undefined): attachmentsService.AttachmentError | void;
export default function checkIfAttachmentsExist(form: FormTypes.Form, submission: SubmissionTypes.S3SubmissionData['submission'], attachmentRetentionInDays: number | undefined): SubmissionTypes.S3SubmissionData['submission'] | void;