import type { Constructor } from '@cratis/fundamentals';
import type { EventContext } from '../events/EventContext.js';
import type { ReducerEventHandler } from './ReducerEventHandler.js';
/** Selects and invokes the same reducer handlers for kernel deliveries and in-process scenarios. */
export declare class ReducerEventDispatcher {
    readonly handlers: ReducerEventHandler[];
    readonly validateInstance: (instance: object) => void;
    /** Discovers event methods from the artifact event types. */
    constructor(reducerType: Constructor, eventTypes: readonly Constructor[]);
    /** Resolves a registered event type, or returns undefined for an unsubscribed event. */
    handlerFor(eventTypeId: string): ReducerEventHandler | undefined;
    /** Calls the selected handler with the event, current state, and context. */
    invoke(instance: Record<string, Function>, handler: ReducerEventHandler, event: unknown, currentState: unknown, context: EventContext): Promise<unknown>;
}
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