import { LRUCache } from 'lru-cache';
import { type Request, type Response, type SerializableLruOptions, type Stats } from './messages.js';
type DistributiveOmit<T, K extends keyof never> = T extends unknown ? Omit<T, K> : never;
export type ExecPayload = DistributiveOmit<Request, 'id' | 'namespace' | 'source'>;
type NonNullish = {};
type AnyCache = LRUCache<NonNullish, NonNullish>;
type DispatchContext = {
    workerId?: number;
};
export declare const caches: Map<string, AnyCache>;
export declare const stats: Map<string, Stats>;
export declare const versions: Map<string, number>;
export declare function getNamespaceVersion(namespace: string): number;
export declare function getOrCreateCache(namespace: string, options?: SerializableLruOptions): AnyCache;
export declare function dispatchOp(namespace: string, payload: ExecPayload, context?: DispatchContext): unknown;
export declare function dispatchAndBroadcast(namespace: string, payload: ExecPayload, context?: DispatchContext): {
    value: unknown;
    version: number;
};
export declare function handleRequest(request: Request, context?: DispatchContext): Response;
export declare function installClusterListener(): void;
export {};
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