import type { CellOutput, OutputData, OutputSummaryEntry } from '@curvenote/blocks';
import { KnownCellOutputMimeTypes, OutputSummaryKind } from '@curvenote/blocks';
import type { IFileObjectFactoryFn } from '../../files';
import Summarizer from './base';
declare class ImageSummarizer extends Summarizer {
    data: OutputData;
    selectedContentType: KnownCellOutputMimeTypes | null;
    constructor(fileFactory: IFileObjectFactoryFn, item: CellOutput, basepath: string);
    test(item: CellOutput): boolean;
    kind(): OutputSummaryKind;
    $pickBestImageType(): KnownCellOutputMimeTypes | null;
    $selectedTypeError(): Error;
    /**
     * Removes the image key that this summarizer will process
     */
    next(): CellOutput;
    prepare(): OutputSummaryEntry;
    process(summary: OutputSummaryEntry): Promise<OutputSummaryEntry>;
}
export default ImageSummarizer;