import { BigNumber } from 'bignumber.js';
import { Provider } from '../definitions';
/**
 * Provider which redirects the pin/unpin requests to the correct provider
 * based on the structure of the hash.
 */
export declare class ProviderManager implements Provider {
    private ipfs?;
    register(provider: Provider): void;
    pin(hash: string, expectedSize: BigNumber, agreementReference: string): Promise<void>;
    unpin(hash: string): Promise<void>;
}