import "../_dnt.polyfills.js";
import { Connection } from "./Connection.js";
export interface SmoldotRpcConnProps {
    relayChainSpec: string;
    parachainSpec?: string;
    maxLogLevel?: number;
}
export declare class SmoldotConnection extends Connection {
    readonly props: SmoldotRpcConnProps;
    private smoldotChainPending;
    listening: import("../deps/std/async.js").Deferred<void>;
    stopListening: () => void;
    constructor(props: SmoldotRpcConnProps);
    startListening(): Promise<void>;
    ready(): Promise<void>;
    send(id: number, method: string, params: unknown[]): void;
    close(): void;
}