import { IBlockchain } from '../interfaces';
import { GetBlockResult } from '../types';
import { Loggable } from "./Loggable";
import { ILogger } from "../interfaces/lib/ILogger";
import { IAlerts } from "../interfaces/lib/IAlerts";
/**
 * The IBlockchain implementation for interacting with Casper Network
 */
export declare class CasperBlockchain extends Loggable implements IBlockchain {
    /**
     * Client used for sending JSON-RPC requests to the Casper node.
     * Requires the node's /rpc url as a constructor argument.
     *
     * [CasperServiceByJsonRPC](https://casper-ecosystem.github.io/casper-js-sdk/latest/modules/_services_casperservicebyjsonrpc_.html)
     */
    private client;
    /**
     * @param providerUrl property used for delegation of routing logs
     * @param {ILogger} logger property used for delegation of routing logs
     * @param {IAlerts} alerts property used for delegation of sending alerts
     */
    constructor(providerUrl: string, logger?: ILogger, alerts?: IAlerts);
    /**
     * Fetches the block, if it exists, for the given height using the Casper Network client.
     * @param height height of desired block
     */
    getBlockByHeight(height: number): Promise<GetBlockResult>;
    /**
     * Fetches the latest block height from the Casper Network client.
     */
    getCurrentBlockHeight(): Promise<number | undefined>;
}