type BivariantCallback<Args extends unknown[], Return = void> = {
    callback(...args: Args): Return;
}["callback"];
export type PipelineCallbackFields = {
    onPlanResolved?: BivariantCallback<[summary: unknown]>;
    onTaskStart?: BivariantCallback<[progress: unknown]>;
    onTaskComplete?: BivariantCallback<[progress: unknown]>;
};
export type ExperimentCallbackFields = {
    onExperimentStart?: BivariantCallback<[index: number, agent: string]>;
    onBaselineCollected?: BivariantCallback<[baseline: Record<string, number>]>;
    onMetricResult?: BivariantCallback<[metric: unknown, result: unknown]>;
    onCommit?: BivariantCallback<[commitHash: string]>;
    onReset?: BivariantCallback<[targetHash: string]>;
    onExperimentComplete?: BivariantCallback<[index: number, entry: unknown]>;
};
export type LoopCallbacks = {
    runRole?: <T>(role: "builder" | "inspector" | "superintendent" | "owner", name: string | undefined, run: () => Promise<T>) => Promise<T>;
    onBuilderStart?: () => void;
    onBuilderComplete?: BivariantCallback<[result: unknown]>;
    onBuilderFailed?: BivariantCallback<[error: Error]>;
    onInspectorStart?: BivariantCallback<[name: string]>;
    onInspectorComplete?: BivariantCallback<[result: unknown]>;
    onInspectorFailed?: BivariantCallback<[name: string, error: Error]>;
    onSuperintendentStart?: () => void;
    onSuperintendentComplete?: BivariantCallback<[result: unknown]>;
    onOwnerStart?: () => void;
    onOwnerComplete?: BivariantCallback<[result: unknown]>;
    onRoundComplete?: BivariantCallback<[round: number]>;
    onLoopComplete?: BivariantCallback<[state: unknown]>;
    onStateChange?: BivariantCallback<[state: unknown]>;
    shouldPause?: () => boolean;
    shouldStop?: () => boolean;
};
export declare function mergePipelineCallbacks(user: PipelineCallbackFields | undefined, added: PipelineCallbackFields | undefined): PipelineCallbackFields | undefined;
export declare function mergeExperimentCallbacks(user: ExperimentCallbackFields | undefined, added: ExperimentCallbackFields | undefined): ExperimentCallbackFields | undefined;
export declare function mergeLoopCallbacks(user: LoopCallbacks | undefined, added: LoopCallbacks | undefined): LoopCallbacks | undefined;
export {};