import type { RpcChannel } from "./RpcChannel.js";
/**
 * Convert any thrown value into the wire-safe `{ code, message, stack }` shape.
 *
 * Fixes the "[object Object]" bug: the old code did `err?.message || String(err)`,
 * so an error with an EMPTY message (e.g. a backend error `{ code, message: '' }`)
 * fell through to `String(obj)` → "[object Object]". We now never stringify the
 * object blindly — we surface its real fields (code/name, JSON of own props) so
 * the main thread receives something legible. Always returns a structured-clone
 * safe plain object, so postMessage can't throw DataCloneError on a class error.
 */
export declare function serializeError(err: any): {
    code: string;
    message: string;
    stack?: string;
};
export declare class WorkerManager {
    #private;
    private channel;
    constructor(channel: RpcChannel);
    exposeService(name: string, service: any): void;
}
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