import { Worker } from '@dazl/isomorphic-worker/worker';
export declare function getNextMessageId(): string;
export declare function rpcCall<T>(worker: Worker, type: string, timeout?: number): Promise<T>;
export declare function rpcPost(worker: Worker, type: string, value?: unknown): void;
export declare function bindRpcListener<T>(type: string, customFetcher: (value: unknown) => Promise<T> | T): () => void;
export declare function isValidRpcMessage(message: unknown): message is {
    type: string;
    id: string;
    value?: unknown;
};
export declare function isValidRpcResponse(responseMessage: unknown, id: string | number): responseMessage is {
    id: string | number;
    value: unknown;
};
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