import { Subprovider } from '@0x/subproviders';
import { Callback, ErrorCallback } from '@0x/subproviders/lib/src/types';
import { JSONRPCRequestPayload } from 'ethereum-types';
import { WalletConnect } from 'walletconnect-node';
export declare class WalletConnectSubprovider extends Subprovider {
    private readonly _walletConnect;
    constructor(walletConnect: WalletConnect);
    handleRequest(payload: JSONRPCRequestPayload, next: Callback, end: ErrorCallback): Promise<void>;
    private _populateMissingTxParamsAsync;
}