/// <reference types="node" />
/// <reference types="node" />
import type { FFmpeg } from '@ffmpeg/ffmpeg';
import type { ManualTicker, DefaultTimeline } from '@visactor/vrender-core';
export type TimeType = {
    totalTime: number;
    frameArr: any[];
};
export type OuterPackages = {
    VChart: any;
    FFmpeg: FFmpeg;
    fetchFile: (data: string | Buffer | Blob | File) => Promise<Uint8Array>;
    ManualTicker: typeof ManualTicker;
    defaultTimeline: DefaultTimeline;
    createCanvas: any;
};
export interface UnfoldTransformOptions {
    groupBy?: string[] | string;
    keyField: string;
    valueField: string;
    aggregateType?: 'sum' | 'min' | 'max' | 'count' | 'mean';
}