import type { CellOutput, OutputSummaryEntry } from '@curvenote/blocks';
import { OutputSummaryKind } from '@curvenote/blocks';
import Summarizer from './base';
declare class StreamSummarizer extends Summarizer {
    test(item: CellOutput): boolean;
    kind(): OutputSummaryKind;
    next(): CellOutput;
    prepare(): OutputSummaryEntry;
}
export default StreamSummarizer;