import { AttachmentApi } from '../types/attachmentApi';
import { MutableRefObject } from 'react';
import { Attachment } from '../model/attachment';
import { ApiAttachmentModel } from '../model/apiAttachmentModel';
export type HandleSubmit = {
    extract(): Promise<ApiAttachmentModel[]>;
};
export interface UseDataTransfer {
    onRemove: (file: Attachment) => void;
    onDownload: (file: Attachment) => void;
    onPreview: (file: Attachment) => string | null;
}
export declare function useAttachmentDataHandler(api: AttachmentApi, handleSubmit: MutableRefObject<HandleSubmit>): {
    apiFiles: ApiAttachmentModel[];
    toUploadFiles: File[];
    onRemove: (file: Attachment) => void;
    onPreview: (file: Attachment) => string | null;
    onDownload: (file: Attachment) => void;
    addFiles: (files: FileList) => void;
    clearFiles: () => void;
};