export declare type Callback = (error: any, response: any) => void;
export declare type Handler = (msg: any, cb: Callback) => void;
export declare class RpcBridge {
    private readonly sendMessage;
    private readonly handler;
    private nextId;
    private readonly callbacks;
    constructor(sendMessage: (msg: any) => void, handler: Handler);
    handleMessage(msg: unknown): void;
    send(msg: unknown, cb: Callback): void;
    private getId;
    private handleRpc;
    private handleResponse;
    private handleRequest;
    private getCallbackHandler;
    private sendRpc;
}
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