import { Contract } from 'ethers';
import { DB } from '@pigi/core';
import { Event, EthereumListener } from './interfaces';
export declare class EthereumEventProcessor {
    private readonly db;
    private readonly earliestBlock;
    private readonly subscriptions;
    private currentBlockNumber;
    private syncStatuses;
    constructor(db: DB, earliestBlock?: number);
    subscribe(contract: Contract, eventName: string, handler: EthereumListener<Event>, syncPastEvents?: boolean): Promise<void>;
    private syncPastEvents;
    private finishSync;
    private handleEvent;
    private getBlockNumber;
    private static createEventFromLogDesc;
    private createEventFromEthersEvent;
    private static getLogValues;
    private getEventID;
}