import type { StageId } from '../types/index.js';
import type { Stage } from './spec-types.js';
import type { RegressionStageInput, RegressionStageOutput, RegressionStageOptions } from './regression-types.js';
export declare class RegressionStage implements Stage<RegressionStageInput, RegressionStageOutput> {
    private readonly options;
    readonly stageId: StageId;
    private readonly now;
    constructor(options: RegressionStageOptions);
    execute(input: RegressionStageInput): Promise<RegressionStageOutput>;
    private runCheck;
    private writeArtifact;
}
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