import type { JSONRPCResponseFulfilled, JSONRPCResponseRejected } from './JSONRPCServer.js';
export type JSONRPCClientSend = (message: string) => void | Promise<void>;
export declare class JSONRPCClient {
    private readonly send;
    private readonly listeners;
    private readonly pending;
    constructor(send: JSONRPCClientSend);
    addListener(listener: (response: JSONRPCResponseFulfilled | JSONRPCResponseRejected) => void): () => void;
    call(method: string, ...params: unknown[]): Promise<unknown>;
    rejectPending(error: Error): void;
    notify(method: string, ...params: unknown[]): Promise<void>;
    handle(message: unknown): Promise<unknown>;
}