import { AStepper, IHasCycles } from '../astepper.js';
import { TWorld, IStepperCycles } from '../defs.js';
import { THaibunEvent } from '../../schema/protocol.js';
/**
 * EventCollectorStepper - Collects events for test inspection.
 *
 * Usage in tests:
 * ```ts
 * const collector = new EventCollectorStepper();
 * const res = await passWithDefaults(content, [collector, ...steppers]);
 * const events = collector.getEvents();
 * const stepEvents = collector.getStepEvents();
 * ```
 */
export declare class EventCollectorStepper extends AStepper implements IHasCycles {
    description: string;
    private events;
    cycles: IStepperCycles;
    setWorld(world: TWorld, steppers: AStepper[]): Promise<void>;
    steps: {};
    /** Get all collected events */
    getEvents(): THaibunEvent[];
    /** Get step lifecycle events only */
    getStepEvents(): THaibunEvent[];
    /** Get events matching a predicate */
    findEvents(predicate: (e: THaibunEvent) => boolean): THaibunEvent[];
    /** Clear collected events */
    clear(): void;
}
export default EventCollectorStepper;
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