import { FormTypes } from '@oneblink/types';
import { attachmentsService } from '../apps';
export declare function generateErrorAttachment(blob: Blob | undefined, fileName: string, element: FormTypes.FormElementBinaryStorage, errorMessage: string, errorType?: attachmentsService.AttachmentError['errorType']): attachmentsService.AttachmentError;
export declare function prepareNewAttachment(blob: Blob, fileName: string, element: FormTypes.FormElementBinaryStorage): attachmentsService.AttachmentNew;
export declare function checkIfContentTypeIsImage(contentType: string): boolean;
export declare function parseFilesAsAttachmentsLegacy(files: File[], onAnnotateCanvas?: (file: File, canvas: HTMLCanvasElement) => void): Promise<Array<{
    data: string;
    fileName: string;
    contentType: string;
}>>;
export declare function correctFileOrientation(file: File, onAnnotateCanvas?: (file: File, canvas: HTMLCanvasElement) => void): Promise<Blob | HTMLCanvasElement>;