export declare function _setWorkerPostMessageMockForTest(postMessageFn: typeof postMessage): void;
export declare function postRequestToMain<T>({ callName, data, transfer, awaitResponse, }: {
    callName: string;
    data?: T;
    transfer?: Transferable[];
    awaitResponse?: boolean;
}): Promise<unknown>;
export declare function postResponseToMain<T>({ messageId, data, transfer, }: {
    messageId: string;
    data: T;
    transfer?: Transferable[];
}): void;