import type { FabricInvocationContext } from "../protocol.js";
import { MemoryProvider, type MemoryProviderContext } from "../providers/memory-provider.js";
/** Pi-facing file memory: one lazy worker, bounded FIFO, no transcript work on the UI thread. */
export declare class WorkerMemoryProvider extends MemoryProvider {
    private readonly workerContext;
    private readonly workerUrl;
    private worker;
    private active;
    private readonly pending;
    private idleTimer;
    private stopping;
    private closed;
    private nextId;
    constructor(workerContext: MemoryProviderContext, workerUrl?: URL);
    invoke(action: string, args: Record<string, unknown>, invocation: FabricInvocationContext): Promise<unknown>;
    private snapshot;
    private start;
    private finish;
    private failWorker;
    private pump;
    private retire;
    close(): Promise<void>;
}
//# sourceMappingURL=worker-provider.d.ts.map