import Web3ProviderEngine = require('web3-provider-engine');
import { Subprovider } from '../subproviders/subprovider';
/**
 * Prepends a subprovider to a provider
 * @param provider    Given provider
 * @param subprovider Subprovider to prepend
 */
export declare function prependSubprovider(provider: Web3ProviderEngine, subprovider: Subprovider): void;
//# sourceMappingURL=subprovider_utils.d.ts.map