import type { AdaptiveSpec } from '@visactor/vchart';
import { BasePieChartSpecTransformer } from '@visactor/vchart';
import type { IPie3dChartSpec } from './interface';
export declare class Pie3dChartSpecTransformer<T extends IPie3dChartSpec = IPie3dChartSpec> extends BasePieChartSpecTransformer<AdaptiveSpec<T, 'type'>> {
    transformSpec(spec: any): void;
}