import type { Task } from "../common/types.js";
import { NodeFsDuplex } from "../fs-duplex/node.js";
import Debug from "debug";
export declare const debug: Debug.Debugger;
/**
 * The options for creating a task channel with a browser tab.
 */
export interface RunTaskOptions<T extends Task> {
    dir: string;
    initialTask: T;
}
/**
 * Establishes a communication channel for a task with an active browser tab
 * using the new fs-duplex protocol (dual-file, heartbeat).
 */
declare function runTaskInBrowser<T extends Task>(options: RunTaskOptions<T>): Promise<NodeFsDuplex<T, "initiator">>;
export type TaskRunner = typeof runTaskInBrowser;
export declare const evaler: {
    runCodeInBrowser: (dir: string, code: string) => Promise<any>;
    runFetchInBrowser: (dir: string, url: string, init?: RequestInit) => Promise<{
        readonly headers: Headers;
        readonly ok: boolean;
        readonly status: number;
        readonly statusText: string;
        #duplex: NodeFsDuplex<import("../common/fetch.js").FetchTask, "initiator">;
        #bodyUsed: boolean;
        #taskId: string;
        #readFullBody(format: "json" | "text"): Promise<any>;
        get body(): ReadableStream<Uint8Array> | null;
        json(): Promise<any>;
        text(): Promise<string>;
        arrayBuffer(): Promise<ArrayBuffer>;
    }>;
};
export {};
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